12200111022100 has 18 divisors (see below), whose sum is σ = 26474240918174. Its totient is φ = 4880044408800.

The previous prime is 12200111022089. The next prime is 12200111022139. The reversal of 12200111022100 is 122011100221.

It can be written as a sum of positive squares in 3 ways, for example, as 716389574404 + 11483721447696 = 846398^2 + 3388764^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61000555011 + ... + 61000555210.

Almost surely, 2^{12200111022100} is an apocalyptic number.

12200111022100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12200111022100 is an abundant number, since it is smaller than the sum of its proper divisors (14274129896074).

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

12200111022100 is a wasteful number, since it uses less digits than its factorization.

12200111022100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122001110235 (or 122001110228 counting only the distinct ones).

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

Adding to 12200111022100 its reverse (122011100221), we get a palindrome (12322122122321).

The spelling of 12200111022100 in words is "twelve trillion, two hundred billion, one hundred eleven million, twenty-two thousand, one hundred".