391222111112 has 32 divisors (see below), whose sum is σ = 838735809600. Its totient is φ = 167586076224.

The previous prime is 391222111057. The next prime is 391222111121. The reversal of 391222111112 is 211111222193.

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, 1560287 + ... + 1793582.

It is an arithmetic number, because the mean of its divisors is an integer number (26210494050).

Almost surely, 2^391222111112 is an apocalyptic number.

It is an amenable number.

391222111112 is an abundant number, since it is smaller than the sum of its proper divisors (447513698488).

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

391222111112 is a wasteful number, since it uses less digits than its factorization.

391222111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3355965 (or 3355961 counting only the distinct ones).

The product of its digits is 432, while the sum is 26.

The spelling of 391222111112 in words is "three hundred ninety-one billion, two hundred twenty-two million, one hundred eleven thousand, one hundred twelve".