312221422320111 has 12 divisors (see below), whose sum is σ = 457164396153088. Its totient is φ = 205296277689504.

The previous prime is 312221422320079. The next prime is 312221422320113. The reversal of 312221422320111 is 111023224122213.

312221422320111 is a `hidden beast` number, since 3 + 1 + 2 + 2 + 21 + 422 + 3 + 201 + 11 = 666.

It is not a de Polignac number, because 312221422320111 - 2⁵ = 312221422320079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312221422320113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 237611431855 + ... + 237611433168.

Almost surely, 2^{312221422320111} is an apocalyptic number.

312221422320111 is a deficient number, since it is larger than the sum of its proper divisors (144942973832977).

312221422320111 is a wasteful number, since it uses less digits than its factorization.

312221422320111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475222865102 (or 475222865099 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 312221422320111 its reverse (111023224122213), we get a palindrome (423244646442324).

The spelling of 312221422320111 in words is "three hundred twelve trillion, two hundred twenty-one billion, four hundred twenty-two million, three hundred twenty thousand, one hundred eleven".