331102013220 has 144 divisors (see below), whose sum is σ = 1125258982848. Its totient is φ = 78097754880.

The previous prime is 331102013213. The next prime is 331102013279. The reversal of 331102013220 is 22310201133.

331102013220 is a `hidden beast` number, since 33 + 110 + 201 + 322 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 331102013193 and 331102013202.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2186514 + ... + 2333033.

It is an arithmetic number, because the mean of its divisors is an integer number (7814298492).

Almost surely, 2^331102013220 is an apocalyptic number.

331102013220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

331102013220 is an abundant number, since it is smaller than the sum of its proper divisors (794156969628).

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

331102013220 is a wasteful number, since it uses less digits than its factorization.

331102013220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4519610 (or 4519605 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 331102013220 its reverse (22310201133), we get a palindrome (353412214353).

The spelling of 331102013220 in words is "three hundred thirty-one billion, one hundred two million, thirteen thousand, two hundred twenty".