331321120212 has 48 divisors (see below), whose sum is σ = 791999337024. Its totient is φ = 107738400000.

The previous prime is 331321120211. The next prime is 331321120219. The reversal of 331321120212 is 212021123133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331321120211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12488962 + ... + 12515462.

It is an arithmetic number, because the mean of its divisors is an integer number (16499986188).

Almost surely, 2^331321120212 is an apocalyptic number.

It is an amenable number.

331321120212 is an abundant number, since it is smaller than the sum of its proper divisors (460678216812).

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

331321120212 is a wasteful number, since it uses less digits than its factorization.

331321120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51960 (or 51958 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 331321120212 its reverse (212021123133), we get a palindrome (543342243345).

The spelling of 331321120212 in words is "three hundred thirty-one billion, three hundred twenty-one million, one hundred twenty thousand, two hundred twelve".