331222220120 has 48 divisors (see below), whose sum is σ = 819159097680. Its totient is φ = 120444441920.

The previous prime is 331222220117. The next prime is 331222220159. The reversal of 331222220120 is 21022222133.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 331222220092 and 331222220101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34212332 + ... + 34222011.

It is an arithmetic number, because the mean of its divisors is an integer number (17065814535).

Almost surely, 2^331222220120 is an apocalyptic number.

It is an amenable number.

331222220120 is an abundant number, since it is smaller than the sum of its proper divisors (487936877560).

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

331222220120 is a wasteful number, since it uses less digits than its factorization.

331222220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68434376 (or 68434361 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 331222220120 its reverse (21022222133), we get a palindrome (352244442253).

The spelling of 331222220120 in words is "three hundred thirty-one billion, two hundred twenty-two million, two hundred twenty thousand, one hundred twenty".