212112331120 has 20 divisors (see below), whose sum is σ = 493161170040. Its totient is φ = 84844932416.

The previous prime is 212112331103. The next prime is 212112331129. The reversal of 212112331120 is 21133211212.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212112331129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1325701990 + ... + 1325702149.

It is an arithmetic number, because the mean of its divisors is an integer number (24658058502).

Almost surely, 2^212112331120 is an apocalyptic number.

212112331120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212112331120 is an abundant number, since it is smaller than the sum of its proper divisors (281048838920).

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

212112331120 is a wasteful number, since it uses less digits than its factorization.

212112331120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2651404152 (or 2651404146 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 212112331120 its reverse (21133211212), we get a palindrome (233245542332).

The spelling of 212112331120 in words is "two hundred twelve billion, one hundred twelve million, three hundred thirty-one thousand, one hundred twenty".