312110222111 has 16 divisors (see below), whose sum is σ = 336487876608. Its totient is φ = 288650498400.

The previous prime is 312110222087. The next prime is 312110222147. The reversal of 312110222111 is 111222011213.

It is a happy number.

It is not a de Polignac number, because 312110222111 - 2²⁶ = 312043113247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312110222111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312110222191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 600476 + ... + 992366.

It is an arithmetic number, because the mean of its divisors is an integer number (21030492288).

Almost surely, 2^312110222111 is an apocalyptic number.

312110222111 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

312110222111 is a deficient number, since it is larger than the sum of its proper divisors (24377654497).

312110222111 is a wasteful number, since it uses less digits than its factorization.

312110222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393062.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 312110222111 its reverse (111222011213), we get a palindrome (423332233324).

The spelling of 312110222111 in words is "three hundred twelve billion, one hundred ten million, two hundred twenty-two thousand, one hundred eleven".