312012122 has 8 divisors (see below), whose sum is σ = 468258996. Its totient is φ = 155925792.

The previous prime is 312012079. The next prime is 312012139. The reversal of 312012122 is 221210213.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 297942121 + 14070001 = 17261^2 + 3751^2 .

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 = 312012097 and 312012106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35153 + ... + 43124.

Almost surely, 2^312012122 is an apocalyptic number.

312012122 is a deficient number, since it is larger than the sum of its proper divisors (156246874).

312012122 is a wasteful number, since it uses less digits than its factorization.

312012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80272.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 312012122 is about 17663.8648658780. The cubic root of 312012122 is about 678.2510723064.

Adding to 312012122 its reverse (221210213), we get a palindrome (533222335).

The spelling of 312012122 in words is "three hundred twelve million, twelve thousand, one hundred twenty-two".