212311330120 has 32 divisors (see below), whose sum is σ = 477782580600. Its totient is φ = 84909938688.

The previous prime is 212311330097. The next prime is 212311330129. The reversal of 212311330120 is 21033113212.

It can be written as a sum of positive squares in 4 ways, for example, as 178251151204 + 34060178916 = 422198^2 + 184554^2 .

It is a super-2 number, since 2×212311330120² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212311330129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218835 + ... + 687394.

Almost surely, 2^212311330120 is an apocalyptic number.

212311330120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212311330120 is an abundant number, since it is smaller than the sum of its proper divisors (265471250480).

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

212311330120 is a wasteful number, since it uses less digits than its factorization.

212311330120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912097 (or 912093 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 212311330120 its reverse (21033113212), we get a palindrome (233344443332).

The spelling of 212311330120 in words is "two hundred twelve billion, three hundred eleven million, three hundred thirty thousand, one hundred twenty".