212100010211100 has 144 divisors (see below), whose sum is σ = 676093124520576. Its totient is φ = 50909093280000.

The previous prime is 212100010211053. The next prime is 212100010211149. The reversal of 212100010211100 is 1112010001212.

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 47 ways as a sum of consecutive naturals, for example, 317848534 + ... + 318515133.

It is an arithmetic number, because the mean of its divisors is an integer number (4695091142504).

Almost surely, 2^{212100010211100} is an apocalyptic number.

212100010211100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212100010211100 is an abundant number, since it is smaller than the sum of its proper divisors (463993114309476).

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

212100010211100 is a wasteful number, since it uses less digits than its factorization.

212100010211100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636363796 (or 636363789 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 212100010211100 its reverse (1112010001212), we get a palindrome (213212020212312).

The spelling of 212100010211100 in words is "two hundred twelve trillion, one hundred billion, ten million, two hundred eleven thousand, one hundred".