331120212 has 24 divisors (see below), whose sum is σ = 776084736. Its totient is φ = 109877568.

The previous prime is 331120211. The next prime is 331120219. The reversal of 331120212 is 212021133.

It is a junction number, because it is equal to n+sod(n) for n = 331120191 and 331120200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331120211) 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 7 ways as a sum of consecutive naturals, for example, 59193 + ... + 64544.

It is an arithmetic number, because the mean of its divisors is an integer number (32336864).

Almost surely, 2^331120212 is an apocalyptic number.

It is an amenable number.

331120212 is an abundant number, since it is smaller than the sum of its proper divisors (444964524).

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

331120212 is a wasteful number, since it uses less digits than its factorization.

331120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123967 (or 123965 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 331120212 is about 18196.7088233010. The cubic root of 331120212 is about 691.8233731222.

Adding to 331120212 its reverse (212021133), we get a palindrome (543141345).

The spelling of 331120212 in words is "three hundred thirty-one million, one hundred twenty thousand, two hundred twelve".