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A trillion is equal to 1012 in the short scale, or 1018 in the long scale.[1]

This number is also called tetrillion in Russ Rowlett's Greek-based naming system.[2]

Donald Knuth calls this number piciad and quintyriad, and it's equal to using the -yllion system.

Jonathan Bowers calls this number quadnanillion, and it's equal to using the quad-illion system.

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

Decimal Edit

Examples Edit

  • The nearest star to the Earth (besides the sun), Alpha Centauri, is over 26 trillion miles away.[3]
  • The human body contains somewhere around 50 trillion cells.[3]
  • There are roughly a trillion fish in the world.[3]
  • 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.

Million Billion Trillion

Quadrillion Quintillion Sextillion

Octillion Nonillion Decillion Vigintillion Trigintillion googol

Quadragintillion Centillion Quadringcentillion

As a banknote denomination Edit

Some currencies, such as the German Papiermark and the Hungarian pengő, had banknotes with this number in the denomination.

Gallery Edit

Sources Edit

  1. Trillion at Wolfram MathWorld
  2. Names for Large Numbers
  3. 3.0 3.1 3.2 Template:Citation/CS1

See also Edit

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