102011222100 has 72 divisors (see below), whose sum is σ = 298074859488. Its totient is φ = 26933648000.

The previous prime is 102011222009. The next prime is 102011222111. The reversal of 102011222100 is 1222110201.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 1653054 + ... + 1713653.

It is an arithmetic number, because the mean of its divisors is an integer number (4139928604).

Almost surely, 2^102011222100 is an apocalyptic number.

102011222100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102011222100 is an abundant number, since it is smaller than the sum of its proper divisors (196063637388).

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

102011222100 is a wasteful number, since it uses less digits than its factorization.

102011222100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3366825 (or 3366818 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102011222100 its reverse (1222110201), we get a palindrome (103233332301).

The spelling of 102011222100 in words is "one hundred two billion, eleven million, two hundred twenty-two thousand, one hundred".