212100332120 has 32 divisors (see below), whose sum is σ = 477332367120. Its totient is φ = 84821178240.

The previous prime is 212100332117. The next prime is 212100332131. The reversal of 212100332120 is 21233001212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 410366 + ... + 769805.

Almost surely, 2^212100332120 is an apocalyptic number.

212100332120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212100332120 is an abundant number, since it is smaller than the sum of its proper divisors (265232035000).

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

212100332120 is a wasteful number, since it uses less digits than its factorization.

212100332120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184675 (or 1184671 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 212100332120 its reverse (21233001212), we get a palindrome (233333333332).

The spelling of 212100332120 in words is "two hundred twelve billion, one hundred million, three hundred thirty-two thousand, one hundred twenty".