312210203212 has 24 divisors (see below), whose sum is σ = 547793704304. Its totient is φ = 155698163712.

The previous prime is 312210203191. The next prime is 312210203251. The reversal of 312210203212 is 212302012213.

It is a self number, because there is not a number n which added to its sum of digits gives 312210203212.

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, 2782828 + ... + 2892844.

Almost surely, 2^312210203212 is an apocalyptic number.

It is an amenable number.

312210203212 is a deficient number, since it is larger than the sum of its proper divisors (235583501092).

312210203212 is a wasteful number, since it uses less digits than its factorization.

312210203212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111865 (or 111863 counting only the distinct ones).

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

Adding to 312210203212 its reverse (212302012213), we get a palindrome (524512215425).

The spelling of 312210203212 in words is "three hundred twelve billion, two hundred ten million, two hundred three thousand, two hundred twelve".