312111122 has 8 divisors (see below), whose sum is σ = 468246576. Its totient is φ = 156028932.

The previous prime is 312111103. The next prime is 312111139. The reversal of 312111122 is 221111213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 312111097 and 312111106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8453 + ... + 26375.

It is an arithmetic number, because the mean of its divisors is an integer number (58530822).

Almost surely, 2^312111122 is an apocalyptic number.

312111122 is a deficient number, since it is larger than the sum of its proper divisors (156135454).

312111122 is a wasteful number, since it uses less digits than its factorization.

312111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26632.

The product of its digits is 24, while the sum is 14.

The square root of 312111122 is about 17666.6669748428. Note that the first 3 decimals coincide. The cubic root of 312111122 is about 678.3228000277.

Adding to 312111122 its reverse (221111213), we get a palindrome (533222335).

Subtracting from 312111122 its reverse (221111213), we obtain a palindrome (90999909).

The spelling of 312111122 in words is "three hundred twelve million, one hundred eleven thousand, one hundred twenty-two".