312310222 has 24 divisors (see below), whose sum is σ = 563745960. Its totient is φ = 129230640.

The previous prime is 312310217. The next prime is 312310231. The reversal of 312310222 is 222013213.

It is a junction number, because it is equal to n+sod(n) for n = 312310196 and 312310205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52104 + ... + 57787.

It is an arithmetic number, because the mean of its divisors is an integer number (23489415).

Almost surely, 2^312310222 is an apocalyptic number.

312310222 is a deficient number, since it is larger than the sum of its proper divisors (251435738).

312310222 is a wasteful number, since it uses less digits than its factorization.

312310222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109936 (or 109929 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 312310222 is about 17672.3009820453. The cubic root of 312310222 is about 678.4670065325.

Adding to 312310222 its reverse (222013213), we get a palindrome (534323435).

The spelling of 312310222 in words is "three hundred twelve million, three hundred ten thousand, two hundred twenty-two".