Statistics, Data Analysis and Probability K81 million = 1,000,000

Million . . .   6 zeros
Billion . . .   9 zeros
Trillion . . .   12 zeros
Quadrillion . . .   15 zeros
Quintillion . . .   18 zeros
Vigintillion . . .   63 zeros
Googol . . .  100 zeros

How many zeros are there in two billion of three trillion?