102221100000012 has 48 divisors (see below), whose sum is σ = 275399802083840. Its totient is φ = 28904935491072.

The previous prime is 102221099999999. The next prime is 102221100000013. The reversal of 102221100000012 is 210000001122201.

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

It is not an unprimeable number, because it can be changed into a prime (102221100000013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6272764312 + ... + 6272780607.

Almost surely, 2^{102221100000012} is an apocalyptic number.

102221100000012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102221100000012 is an abundant number, since it is smaller than the sum of its proper divisors (173178702083828).

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

102221100000012 is a wasteful number, since it uses less digits than its factorization.

102221100000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12545545030 (or 12545545028 counting only the distinct ones).

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

Adding to 102221100000012 its reverse (210000001122201), we get a palindrome (312221101122213).

The spelling of 102221100000012 in words is "one hundred two trillion, two hundred twenty-one billion, one hundred million, twelve", and thus it is an aban number.