331220012116 has 48 divisors (see below), whose sum is σ = 705348806400. Its totient is φ = 135779619360.

The previous prime is 331220012111. The next prime is 331220012117. The reversal of 331220012116 is 611210022133.

It is a happy number.

It is a super-2 number, since 2×331220012116² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331220012111) 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, 5216575 + ... + 5279686.

It is an arithmetic number, because the mean of its divisors is an integer number (14694766800).

Almost surely, 2^331220012116 is an apocalyptic number.

It is an amenable number.

331220012116 is an abundant number, since it is smaller than the sum of its proper divisors (374128794284).

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

331220012116 is a wasteful number, since it uses less digits than its factorization.

331220012116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10496309 (or 10496293 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 331220012116 its reverse (611210022133), we get a palindrome (942430034249).

The spelling of 331220012116 in words is "three hundred thirty-one billion, two hundred twenty million, twelve thousand, one hundred sixteen".