312232122 has 24 divisors (see below), whose sum is σ = 694788276. Its totient is φ = 101264256.

The previous prime is 312232079. The next prime is 312232147. The reversal of 312232122 is 221232213.

312232122 is a `hidden beast` number, since 312 + 232 + 122 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 219899241 + 92332881 = 14829^2 + 9609^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 312232095 and 312232104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 233743 + ... + 235074.

Almost surely, 2^312232122 is an apocalyptic number.

312232122 is an abundant number, since it is smaller than the sum of its proper divisors (382556154).

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

312232122 is a wasteful number, since it uses less digits than its factorization.

312232122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468862 (or 468859 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 312232122 is about 17670.0911712419. The cubic root of 312232122 is about 678.4104466475.

Adding to 312232122 its reverse (221232213), we get a palindrome (533464335).

Subtracting from 312232122 its reverse (221232213), we obtain a palindrome (90999909).

The spelling of 312232122 in words is "three hundred twelve million, two hundred thirty-two thousand, one hundred twenty-two".