331222113212 has 24 divisors (see below), whose sum is σ = 604877513856. Its totient is φ = 158400850608.

The previous prime is 331222113169. The next prime is 331222113251. The reversal of 331222113212 is 212311222133.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

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, 1527383 + ... + 1730705.

It is an arithmetic number, because the mean of its divisors is an integer number (25203229744).

Almost surely, 2^331222113212 is an apocalyptic number.

It is an amenable number.

331222113212 is a deficient number, since it is larger than the sum of its proper divisors (273655400644).

331222113212 is a wasteful number, since it uses less digits than its factorization.

331222113212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221057 (or 221055 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

Adding to 331222113212 its reverse (212311222133), we get a palindrome (543533335345).

The spelling of 331222113212 in words is "three hundred thirty-one billion, two hundred twenty-two million, one hundred thirteen thousand, two hundred twelve".