102001220112100 has 72 divisors (see below), whose sum is σ = 241922893943808. Its totient is φ = 37161734822400.

The previous prime is 102001220112091. The next prime is 102001220112133. The reversal of 102001220112100 is 1211022100201.

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, 967700812 + ... + 967806211.

It is an arithmetic number, because the mean of its divisors is an integer number (3360040193664).

Almost surely, 2^{102001220112100} is an apocalyptic number.

102001220112100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102001220112100 is an abundant number, since it is smaller than the sum of its proper divisors (139921673831708).

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

102001220112100 is a wasteful number, since it uses less digits than its factorization.

102001220112100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1935507085 (or 1935507078 counting only the distinct ones).

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

Adding to 102001220112100 its reverse (1211022100201), we get a palindrome (103212242212301).

The spelling of 102001220112100 in words is "one hundred two trillion, one billion, two hundred twenty million, one hundred twelve thousand, one hundred".