331120111101220 has 36 divisors (see below), whose sum is σ = 808879128549660. Its totient is φ = 113526895234368.

The previous prime is 331120111101209. The next prime is 331120111101271. The reversal of 331120111101220 is 22101111021133.

It can be written as a sum of positive squares in 2 ways, for example, as 180900132807744 + 150219978293476 = 13449912^2 + 12256426^2 .

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, 168938831215 + ... + 168938833174.

It is an arithmetic number, because the mean of its divisors is an integer number (22468864681935).

Almost surely, 2^{331120111101220} is an apocalyptic number.

It is an amenable number.

331120111101220 is an abundant number, since it is smaller than the sum of its proper divisors (477759017448440).

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

331120111101220 is a wasteful number, since it uses less digits than its factorization.

331120111101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337877664412 (or 337877664403 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 331120111101220 its reverse (22101111021133), we get a palindrome (353221222122353).

The spelling of 331120111101220 in words is "three hundred thirty-one trillion, one hundred twenty billion, one hundred eleven million, one hundred one thousand, two hundred twenty".