12211202100 has 36 divisors (see below), whose sum is σ = 35331078944. Its totient is φ = 3256320480.

The previous prime is 12211202089. The next prime is 12211202177. The reversal of 12211202100 is 120211221.

It is a super-2 number, since 2×12211202100² (a number of 21 digits) contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 20351704 + ... + 20352303.

Almost surely, 2^12211202100 is an apocalyptic number.

12211202100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12211202100 is an abundant number, since it is smaller than the sum of its proper divisors (23119876844).

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

12211202100 is a wasteful number, since it uses less digits than its factorization.

12211202100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40704024 (or 40704017 counting only the distinct ones).

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

Adding to 12211202100 its reverse (120211221), we get a palindrome (12331413321).

It can be divided in two parts, 12 and 211202100, that added together give a palindrome (211202112).

The spelling of 12211202100 in words is "twelve billion, two hundred eleven million, two hundred two thousand, one hundred".