1,000,000,000 (1 x 10^9) One Trillion
1,000,000,000,000 (1 x 10^12) One Quadrillion
1,000,000,000,000,000 (1 x 10^15) One Quintillion
1,000,000,000,000,000,000 (1 x 10^18) One Sextillion
1,000,000,000,000,000,000,000 (1 x 10^21) One Septillion
1 x 10^24 One Octillion
1 x 10^27 One Nonillion
1 x 10^30 One Decillion
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1 x 10^99 One duotrigintillion
1 x 10^100 (a 1 followed by 100 zeroes) Commonly called a googol (not google) it could also be called ten duotrigintillion.
1 x 10^(10^100) would be a googolplex. That would be a 1 followed by a googol of zeroes.