102001211122100 has 72 divisors (see below), whose sum is σ = 240508118995200. Its totient is φ = 37406216620800.

The previous prime is 102001211122093. The next prime is 102001211122171. The reversal of 102001211122100 is 1221112100201.

It is a super-2 number, since 2×102001211122100² (a number of 29 digits) contains 22 as substring.

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, 865825745 + ... + 865943544.

It is an arithmetic number, because the mean of its divisors is an integer number (3340390541600).

Almost surely, 2^{102001211122100} is an apocalyptic number.

102001211122100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102001211122100 is an abundant number, since it is smaller than the sum of its proper divisors (138506907873100).

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

102001211122100 is a wasteful number, since it uses less digits than its factorization.

102001211122100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731769353 (or 1731769346 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102001211122100 its reverse (1221112100201), we get a palindrome (103222323222301).

The spelling of 102001211122100 in words is "one hundred two trillion, one billion, two hundred eleven million, one hundred twenty-two thousand, one hundred".