212100210211100 has 36 divisors (see below), whose sum is σ = 468941559116184. Its totient is φ = 83239327778880.

The previous prime is 212100210211073. The next prime is 212100210211117. The reversal of 212100210211100 is 1112012001212.

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, 20009448494 + ... + 20009459093.

It is an arithmetic number, because the mean of its divisors is an integer number (13026154419894).

Almost surely, 2^{212100210211100} is an apocalyptic number.

212100210211100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212100210211100 is an abundant number, since it is smaller than the sum of its proper divisors (256841348905084).

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

212100210211100 is a wasteful number, since it uses less digits than its factorization.

212100210211100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40018907654 (or 40018907647 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 212100210211100 its reverse (1112012001212), we get a palindrome (213212222212312).

The spelling of 212100210211100 in words is "two hundred twelve trillion, one hundred billion, two hundred ten million, two hundred eleven thousand, one hundred".