312233222 has 16 divisors (see below), whose sum is σ = 535483680. Its totient is φ = 133757568.

The previous prime is 312233219. The next prime is 312233261. The reversal of 312233222 is 222332213.

312233222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 312233194 and 312233203.

It is a congruent number.

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, 62804 + ... + 67592.

It is an arithmetic number, because the mean of its divisors is an integer number (33467730).

Almost surely, 2^312233222 is an apocalyptic number.

312233222 is a deficient number, since it is larger than the sum of its proper divisors (223250458).

312233222 is a wasteful number, since it uses less digits than its factorization.

312233222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9455.

The product of its digits is 864, while the sum is 20.

The square root of 312233222 is about 17670.1222972565. The cubic root of 312233222 is about 678.4112433311.

Adding to 312233222 its reverse (222332213), we get a palindrome (534565435).

The spelling of 312233222 in words is "three hundred twelve million, two hundred thirty-three thousand, two hundred twenty-two".