312222274 has 16 divisors (see below), whose sum is σ = 576410688. Its totient is φ = 123516432.

The previous prime is 312222233. The next prime is 312222301. The reversal of 312222274 is 472222213.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 857572 + ... + 857935.

It is an arithmetic number, because the mean of its divisors is an integer number (36025668).

Almost surely, 2^312222274 is an apocalyptic number.

312222274 is a deficient number, since it is larger than the sum of its proper divisors (264188414).

312222274 is a wasteful number, since it uses less digits than its factorization.

312222274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715529.

The product of its digits is 2688, while the sum is 25.

The square root of 312222274 is about 17669.8125060794. The cubic root of 312222274 is about 678.4033140733.

Adding to 312222274 its reverse (472222213), we get a palindrome (784444487).

The spelling of 312222274 in words is "three hundred twelve million, two hundred twenty-two thousand, two hundred seventy-four".