To find out what 1 of 20 billion is, you simply need to divide 1 by 20 billion. In mathematical terms, this can be expressed as:
1 รท 20,000,000,000 = 0.00000000005
This result shows that 1 is a very tiny fraction of 20 billion. To put it in perspective, if you had 20 billion dollars, having 1 dollar would be a minuscule portion of that amount.