331220211332312 has 16 divisors (see below), whose sum is σ = 637822704255360. Its totient is φ = 161134156864224.

The previous prime is 331220211332299. The next prime is 331220211332321. The reversal of 331220211332312 is 213233112022133.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 559493599928 + ... + 559493600519.

It is an arithmetic number, because the mean of its divisors is an integer number (39863919015960).

Almost surely, 2^{331220211332312} is an apocalyptic number.

It is an amenable number.

331220211332312 is a deficient number, since it is larger than the sum of its proper divisors (306602492923048).

331220211332312 is a wasteful number, since it uses less digits than its factorization.

331220211332312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118987200490 (or 1118987200486 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 331220211332312 its reverse (213233112022133), we get a palindrome (544453323354445).

The spelling of 331220211332312 in words is "three hundred thirty-one trillion, two hundred twenty billion, two hundred eleven million, three hundred thirty-two thousand, three hundred twelve".