Trillion

A trillion is equal to 1012 in the short scale, or 1018 in the long scale.

Written out in decimal form trillion (in the short scale) is:

1

In long scale:

1

This number is also called tetrillion in Russ Rowlett's Greek-based naming system.

Aarex Tiaokhiao gave the name tetillion, referring to the value of this number. He also calls 1012 dudoocol, 12-noogol, or goonaoldecault, and it's equal to a(10,100,0)x[10] in Aarex's Array Notation.

Username5243 gave the name niloogolnoniplex, referring to the short scale value of this number.

It is also the first -illion to exceed 1010 in the short scale.

It is equal to 1 million squared in the short scale and 1 million cubed in the long scale.

Decimal

 * 1,000,000,000,000 - short scale
 * 1,000,000,000,000,000,000 - long scale

Examples

 * The nearest star to the Earth (besides the sun), Alpha Centauri, is over 26 trillion miles away.
 * The human body contains somewhere around 50 trillion cells.
 * There are roughly 3,500,000,000,000 fish in the world.
 * The SI prefix tera- multiplies by one trillion.
 * If one sandcastle contains one million grains of sand then you could make one million sandcastles with 1 trillion grains of sand.
 * 1 trillion flops or operations per second is called a teraflop.
 * A 2016 estimate says there are 2,000,000,000,000 galaxies in the observable universe.
 * An estimate says there were 3.04 × 1012 trees on Earth in 2015.
 * Andromeda Galaxy, which is part of the same Local Group as our galaxy, contains about 1012 stars.
 * The surface of the human body houses roughly 1012 bacteria.
 * 1.9786782 × 1012 is a rough estimate of the total number of links on Wikipedia.
 * 1013 – The approximate number of known non-trivial zeros of the Riemann zeta function as of 2004.
 * As of 2013, the number of known digits of π is 12,100,000,000,000 (1.21×1013).
 * Approximately 1014 synapses in the human brain.
 * 281,474,976,710,656 (248) possible unique physical addresses on MAC-48.
 * 953,467,954,114,363 is the largest known Motzkin prime.

As a banknote denomination
Some currencies, such as the and the, had banknotes with this number in the denomination.

Approximations
For short scale: For long scale: