1,000,000,000. 1,000,000,000 (one

**billion**, short scale; one thousand million or milliard, yard, long scale) is the natural number following 999,999,999 and preceding 1,000,000,001. One**billion**can also be written as b or bn. In scientific notation, it is written as 1 × 10^{9}.Consequently, how do I understand how much a billion is?

The USA meaning of a

**billion is**a thousand million, or one followed by nine noughts (1,000,000,000). Increasingly in this country we are using the USA meaning of a**billion**for these big numbers, and a**trillion**for the old UK meaning of one followed by twelve noughts.Furthermore, how many millions is a trillion?

So

**1 trillion**is**1,000,000**x**1,000,000**. A million millions. Meaning,**1 million**millions in a trillion.How much is a zillion?

**How many is a zillion**? 1 million = 1,000,000. 1 billion = 1,000,000,000 or 1,000,000,000,000 depending on if using the long or short scale.

How many millions are in a zillion?

-illion. Words with the suffix -illion (e.g.

**zillion**, gazillion, jillion, squillion) are often used as informal names for unspecified large numbers by analogy to names of large numbers such as**million**(10^{6}), billion (10^{9}) and trillion (10^{12}).