331131032212 has 12 divisors (see below), whose sum is σ = 579741886080. Its totient is φ = 165490493336.

The previous prime is 331131032207. The next prime is 331131032227. The reversal of 331131032212 is 212230131133.

It is a super-2 number, since 2×331131032212² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 18745762 + ... + 18763417.

It is an arithmetic number, because the mean of its divisors is an integer number (48311823840).

Almost surely, 2^331131032212 is an apocalyptic number.

It is an amenable number.

331131032212 is a deficient number, since it is larger than the sum of its proper divisors (248610853868).

331131032212 is a wasteful number, since it uses less digits than its factorization.

331131032212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37511390 (or 37511388 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 331131032212 its reverse (212230131133), we get a palindrome (543361163345).

The spelling of 331131032212 in words is "three hundred thirty-one billion, one hundred thirty-one million, thirty-two thousand, two hundred twelve".