312223002212 has 24 divisors (see below), whose sum is σ = 596255943360. Its totient is φ = 141873392160.

The previous prime is 312223002139. The next prime is 312223002263. The reversal of 312223002212 is 212200322213.

It is a happy number.

It is a super-2 number, since 2×312223002212² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1016843 + ... + 1287794.

It is an arithmetic number, because the mean of its divisors is an integer number (24843997640).

Almost surely, 2^312223002212 is an apocalyptic number.

It is an amenable number.

312223002212 is a deficient number, since it is larger than the sum of its proper divisors (284032941148).

312223002212 is a wasteful number, since it uses less digits than its factorization.

312223002212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2307731 (or 2307729 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 312223002212 its reverse (212200322213), we get a palindrome (524423324425).

The spelling of 312223002212 in words is "three hundred twelve billion, two hundred twenty-three million, two thousand, two hundred twelve".