331221111112112 has 40 divisors (see below), whose sum is σ = 691113441887904. Its totient is φ = 152869544699904.

The previous prime is 331221111112091. The next prime is 331221111112121. The reversal of 331221111112112 is 211211111122133.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9387488 + ... + 27396480.

Almost surely, 2^{331221111112112} is an apocalyptic number.

It is an amenable number.

331221111112112 is an abundant number, since it is smaller than the sum of its proper divisors (359892330775792).

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

331221111112112 is a wasteful number, since it uses less digits than its factorization.

331221111112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18097437 (or 18097431 counting only the distinct ones).

The product of its digits is 144, while the sum is 23.

Adding to 331221111112112 its reverse (211211111122133), we get a palindrome (542432222234245).

The spelling of 331221111112112 in words is "three hundred thirty-one trillion, two hundred twenty-one billion, one hundred eleven million, one hundred twelve thousand, one hundred twelve".