331221010232 has 32 divisors (see below), whose sum is σ = 711361526400. Its totient is φ = 141631417824.

The previous prime is 331221010177. The next prime is 331221010259. The reversal of 331221010232 is 232010122133.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6650882 + ... + 6700497.

It is an arithmetic number, because the mean of its divisors is an integer number (22230047700).

Almost surely, 2^331221010232 is an apocalyptic number.

It is an amenable number.

331221010232 is an abundant number, since it is smaller than the sum of its proper divisors (380140516168).

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

331221010232 is a wasteful number, since it uses less digits than its factorization.

331221010232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13351835 (or 13351831 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 331221010232 its reverse (232010122133), we get a palindrome (563231132365).

The spelling of 331221010232 in words is "three hundred thirty-one billion, two hundred twenty-one million, ten thousand, two hundred thirty-two".