312302222 has 16 divisors (see below), whose sum is σ = 480783600. Its totient is φ = 152089920.

The previous prime is 312302219. The next prime is 312302227. The reversal of 312302222 is 222203213.

It is a super-2 number, since 2×312302222² = 195065355732274568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 312302222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312302227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 722 + ... + 25002.

It is an arithmetic number, because the mean of its divisors is an integer number (30048975).

Almost surely, 2^312302222 is an apocalyptic number.

312302222 is a deficient number, since it is larger than the sum of its proper divisors (168481378).

312302222 is a wasteful number, since it uses less digits than its factorization.

312302222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24451.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 312302222 is about 17672.0746376876. The cubic root of 312302222 is about 678.4612133799.

Adding to 312302222 its reverse (222203213), we get a palindrome (534505435).

Subtracting from 312302222 its reverse (222203213), we obtain a palindrome (90099009).

The spelling of 312302222 in words is "three hundred twelve million, three hundred two thousand, two hundred twenty-two".