212020122120 has 32 divisors (see below), whose sum is σ = 636060366720. Its totient is φ = 56538699200.

The previous prime is 212020122109. The next prime is 212020122133. The reversal of 212020122120 is 21221020212.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 212020122120.

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, 883417056 + ... + 883417295.

It is an arithmetic number, because the mean of its divisors is an integer number (19876886460).

Almost surely, 2^212020122120 is an apocalyptic number.

212020122120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212020122120 is an abundant number, since it is smaller than the sum of its proper divisors (424040244600).

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

212020122120 is a wasteful number, since it uses less digits than its factorization.

212020122120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1766834365 (or 1766834361 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 212020122120 its reverse (21221020212), we get a palindrome (233241142332).

The spelling of 212020122120 in words is "two hundred twelve billion, twenty million, one hundred twenty-two thousand, one hundred twenty".