12220120211100 has 36 divisors (see below), whose sum is σ = 35356881144984. Its totient is φ = 3258698722880.

The previous prime is 12220120211083. The next prime is 12220120211113. The reversal of 12220120211100 is 111202102221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12220120211100.

It is a congruent number.

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, 20366866719 + ... + 20366867318.

Almost surely, 2^{12220120211100} is an apocalyptic number.

12220120211100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220120211100 is an abundant number, since it is smaller than the sum of its proper divisors (23136760933884).

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

12220120211100 is a wasteful number, since it uses less digits than its factorization.

12220120211100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40733734054 (or 40733734047 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12220120211100 its reverse (111202102221), we get a palindrome (12331322313321).

The spelling of 12220120211100 in words is "twelve trillion, two hundred twenty billion, one hundred twenty million, two hundred eleven thousand, one hundred".