212100012202100 has 36 divisors (see below), whose sum is σ = 502098574342848. Its totient is φ = 77127277164000.

The previous prime is 212100012202007. The next prime is 212100012202123. The reversal of 212100012202100 is 1202210001212.

It is a super-2 number, since 2×212100012202100² (a number of 29 digits) contains 22 as substring.

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, 96409095356 + ... + 96409097555.

Almost surely, 2^{212100012202100} is an apocalyptic number.

212100012202100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212100012202100 is an abundant number, since it is smaller than the sum of its proper divisors (289998562140748).

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

212100012202100 is a wasteful number, since it uses less digits than its factorization.

212100012202100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192818192936 (or 192818192929 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212100012202100 its reverse (1202210001212), we get a palindrome (213302222203312).

The spelling of 212100012202100 in words is "two hundred twelve trillion, one hundred billion, twelve million, two hundred two thousand, one hundred".