102021000221100 has 72 divisors (see below), whose sum is σ = 303158619068368. Its totient is φ = 26470313568000.

The previous prime is 102021000221099. The next prime is 102021000221111. The reversal of 102021000221100 is 1122000120201.

It is a super-2 number, since 2×102021000221100² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4595529451 + ... + 4595551650.

Almost surely, 2^{102021000221100} is an apocalyptic number.

102021000221100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102021000221100 is an abundant number, since it is smaller than the sum of its proper divisors (201137618847268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102021000221100 is a wasteful number, since it uses less digits than its factorization.

102021000221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9191081155 (or 9191081148 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102021000221100 its reverse (1122000120201), we get a palindrome (103143000341301).

The spelling of 102021000221100 in words is "one hundred two trillion, twenty-one billion, two hundred twenty-one thousand, one hundred".