212112314220 has 48 divisors (see below), whose sum is σ = 602050307040. Its totient is φ = 55788443136.

The previous prime is 212112314207. The next prime is 212112314243. The reversal of 212112314220 is 22413211212.

It is a happy 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, 24209355 + ... + 24218114.

It is an arithmetic number, because the mean of its divisors is an integer number (12542714730).

Almost surely, 2^212112314220 is an apocalyptic number.

212112314220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212112314220 is an abundant number, since it is smaller than the sum of its proper divisors (389937992820).

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

212112314220 is a wasteful number, since it uses less digits than its factorization.

212112314220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48427554 (or 48427552 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 212112314220 its reverse (22413211212), we get a palindrome (234525525432).

The spelling of 212112314220 in words is "two hundred twelve billion, one hundred twelve million, three hundred fourteen thousand, two hundred twenty".