102001222122100 has 72 divisors (see below), whose sum is σ = 258845892122048. Its totient is φ = 34158548793600.

The previous prime is 102001222121999. The next prime is 102001222122127. The reversal of 102001222122100 is 1221222100201.

It is a happy number.

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, 1694342361 + ... + 1694402560.

Almost surely, 2^{102001222122100} is an apocalyptic number.

102001222122100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102001222122100 is an abundant number, since it is smaller than the sum of its proper divisors (156844669999948).

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

102001222122100 is a wasteful number, since it uses less digits than its factorization.

102001222122100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3388744985 (or 3388744978 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102001222122100 its reverse (1221222100201), we get a palindrome (103222444222301).

The spelling of 102001222122100 in words is "one hundred two trillion, one billion, two hundred twenty-two million, one hundred twenty-two thousand, one hundred".