Answer:
A trillion or a 1 followed by 12 zeros.
Explanation:
The number 'billion' is a cardinal number represented in the U.S. by 1 follow by 9 zeros, and in Great Britain by 1 followed by 12 zeros.
The number 'million' is a cardinal number, a thousand times one thousand.
The number 'trillion" is 1,000,000,000,000, also known as 10 to the 12th power, or one million million. It's such a large number it's hard to get your head around it, so sometimes trillion just means "wow, a lot".
⇒ A billion (1, 000, 000, 000) * A million (1, 000, 000) = 1 trillion (1, 000, 000, 000, 000)