Definition of

Trillion

Trillion
A million millions.

1,000,000 x 1,000,000 = 1,000,000,000,000

Which is a 1 followed by 12 zeros.

Using scientific notation: 1 × 1012

We could also think of it as a thousand billions.

(In many non-English speaking countries it means a million million million, which is a 1 followed by 18 zeros, or 1 × 1018)


Below is a cube made of a million smaller cubes. If each of the small cubes is also worth a million dollars, then the whole cube is worth a trillion dollars.
Trillion

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