331310100220 has 96 divisors (see below), whose sum is σ = 763424766720. Its totient is φ = 119775805440.

The previous prime is 331310100203. The next prime is 331310100307. The reversal of 331310100220 is 22001013133.

It is a junction number, because it is equal to n+sod(n) for n = 331310100194 and 331310100203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38399547 + ... + 38408173.

It is an arithmetic number, because the mean of its divisors is an integer number (7952341320).

Almost surely, 2^331310100220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331310100220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (381712383360).

331310100220 is an abundant number, since it is smaller than the sum of its proper divisors (432114666500).

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

331310100220 is a wasteful number, since it uses less digits than its factorization.

331310100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9643 (or 9641 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 331310100220 its reverse (22001013133), we get a palindrome (353311113353).

The spelling of 331310100220 in words is "three hundred thirty-one billion, three hundred ten million, one hundred thousand, two hundred twenty".