102112221100 has 36 divisors (see below), whose sum is σ = 221606986384. Its totient is φ = 40840562880.

The previous prime is 102112221089. The next prime is 102112221149. The reversal of 102112221100 is 1122211201.

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, 996457 + ... + 1094143.

Almost surely, 2^102112221100 is an apocalyptic number.

102112221100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102112221100 is an abundant number, since it is smaller than the sum of its proper divisors (119494765284).

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

102112221100 is a wasteful number, since it uses less digits than its factorization.

102112221100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108154 (or 108147 counting only the distinct ones).

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

Adding to 102112221100 its reverse (1122211201), we get a palindrome (103234432301).

The spelling of 102112221100 in words is "one hundred two billion, one hundred twelve million, two hundred twenty-one thousand, one hundred".