331223031212 has 6 divisors (see below), whose sum is σ = 579640304628. Its totient is φ = 165611515604.

The previous prime is 331223031203. The next prime is 331223031221. The reversal of 331223031212 is 212130322133.

It is an interprime number because it is at equal distance from previous prime (331223031203) and next prime (331223031221).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41402878898 + ... + 41402878905.

It is an arithmetic number, because the mean of its divisors is an integer number (96606717438).

Almost surely, 2^331223031212 is an apocalyptic number.

It is an amenable number.

331223031212 is a deficient number, since it is larger than the sum of its proper divisors (248417273416).

331223031212 is a wasteful number, since it uses less digits than its factorization.

331223031212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82805757807 (or 82805757805 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 331223031212 its reverse (212130322133), we get a palindrome (543353353345).

The spelling of 331223031212 in words is "three hundred thirty-one billion, two hundred twenty-three million, thirty-one thousand, two hundred twelve".