312223001212 has 12 divisors (see below), whose sum is σ = 546651822640. Its totient is φ = 156036766176.

The previous prime is 312223001197. The next prime is 312223001221. The reversal of 312223001212 is 212100322213.

It is a self number, because there is not a number n which added to its sum of digits gives 312223001212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18674208 + ... + 18690919.

Almost surely, 2^312223001212 is an apocalyptic number.

It is an amenable number.

312223001212 is a deficient number, since it is larger than the sum of its proper divisors (234428821428).

312223001212 is a wasteful number, since it uses less digits than its factorization.

312223001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37367220 (or 37367218 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 312223001212 its reverse (212100322213), we get a palindrome (524323323425).

The spelling of 312223001212 in words is "three hundred twelve billion, two hundred twenty-three million, one thousand, two hundred twelve".