102112020021100 has 36 divisors (see below), whose sum is σ = 222061664720224. Its totient is φ = 40756590262080.

The previous prime is 102112020021071. The next prime is 102112020021113. The reversal of 102112020021100 is 1120020211201.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1102675299 + ... + 1102767898.

Almost surely, 2^{102112020021100} is an apocalyptic number.

102112020021100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102112020021100 is an abundant number, since it is smaller than the sum of its proper divisors (119949644699124).

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

102112020021100 is a wasteful number, since it uses less digits than its factorization.

102112020021100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205443674 (or 2205443667 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102112020021100 its reverse (1120020211201), we get a palindrome (103232040232301).

The spelling of 102112020021100 in words is "one hundred two trillion, one hundred twelve billion, twenty million, twenty-one thousand, one hundred".