102121120222100 has 72 divisors (see below), whose sum is σ = 254659607075328. Its totient is φ = 34819513718400.

The previous prime is 102121120222063. The next prime is 102121120222129. The reversal of 102121120222100 is 1222021121201.

It is a congruent number.

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, 402876932 + ... + 403130331.

Almost surely, 2^{102121120222100} is an apocalyptic number.

102121120222100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102121120222100 is an abundant number, since it is smaller than the sum of its proper divisors (152538486853228).

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

102121120222100 is a wasteful number, since it uses less digits than its factorization.

102121120222100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806007465 (or 806007458 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102121120222100 its reverse (1222021121201), we get a palindrome (103343141343301).

The spelling of 102121120222100 in words is "one hundred two trillion, one hundred twenty-one billion, one hundred twenty million, two hundred twenty-two thousand, one hundred".