312223022 has 8 divisors (see below), whose sum is σ = 488696976. Its totient is φ = 149324032.

The previous prime is 312223001. The next prime is 312223027. The reversal of 312223022 is 220322213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312223027) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3393683 + ... + 3393774.

It is an arithmetic number, because the mean of its divisors is an integer number (61087122).

Almost surely, 2^312223022 is an apocalyptic number.

312223022 is a deficient number, since it is larger than the sum of its proper divisors (176473954).

312223022 is a wasteful number, since it uses less digits than its factorization.

312223022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6787482.

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

The square root of 312223022 is about 17669.8336721091. The cubic root of 312223022 is about 678.4038558297.

Adding to 312223022 its reverse (220322213), we get a palindrome (532545235).

The spelling of 312223022 in words is "three hundred twelve million, two hundred twenty-three thousand, twenty-two".