212013031220 has 48 divisors (see below), whose sum is σ = 460642291200. Its totient is φ = 81869827200.

The previous prime is 212013031193. The next prime is 212013031247. The reversal of 212013031220 is 22130310212.

It is an interprime number because it is at equal distance from previous prime (212013031193) and next prime (212013031247).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5234045 + ... + 5274395.

It is an arithmetic number, because the mean of its divisors is an integer number (9596714400).

Almost surely, 2^212013031220 is an apocalyptic number.

212013031220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212013031220 is an abundant number, since it is smaller than the sum of its proper divisors (248629259980).

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

212013031220 is a wasteful number, since it uses less digits than its factorization.

212013031220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49448 (or 49446 counting only the distinct ones).

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

Adding to 212013031220 its reverse (22130310212), we get a palindrome (234143341432).

The spelling of 212013031220 in words is "two hundred twelve billion, thirteen million, thirty-one thousand, two hundred twenty".