331220211332320 has 96 divisors (see below), whose sum is σ = 794233320451200. Its totient is φ = 130516637385216.

The previous prime is 331220211332299. The next prime is 331220211332321. The reversal of 331220211332320 is 23233112022133.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331220211332321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50977350 + ... + 57106309.

It is an arithmetic number, because the mean of its divisors is an integer number (8273263754700).

Almost surely, 2^{331220211332320} is an apocalyptic number.

It is an amenable number.

331220211332320 is an abundant number, since it is smaller than the sum of its proper divisors (463013109118880).

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

331220211332320 is a wasteful number, since it uses less digits than its factorization.

331220211332320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108083960 (or 108083952 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 331220211332320 its reverse (23233112022133), we get a palindrome (354453323354453).

The spelling of 331220211332320 in words is "three hundred thirty-one trillion, two hundred twenty billion, two hundred eleven million, three hundred thirty-two thousand, three hundred twenty".