12220020002100 has 36 divisors (see below), whose sum is σ = 35356591206944. Its totient is φ = 3258672000480.

The previous prime is 12220020002027. The next prime is 12220020002123. The reversal of 12220020002100 is 120002002221.

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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20366699704 + ... + 20366700303.

Almost surely, 2^{12220020002100} is an apocalyptic number.

12220020002100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220020002100 is an abundant number, since it is smaller than the sum of its proper divisors (23136571204844).

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

12220020002100 is a wasteful number, since it uses less digits than its factorization.

12220020002100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40733400024 (or 40733400017 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 12220020002100 its reverse (120002002221), we get a palindrome (12340022004321).

The spelling of 12220020002100 in words is "twelve trillion, two hundred twenty billion, twenty million, two thousand, one hundred".