312200023212 has 144 divisors (see below), whose sum is σ = 996358272000. Its totient is φ = 80064391680.

The previous prime is 312200023147. The next prime is 312200023243. The reversal of 312200023212 is 212320002213.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 493837 + ... + 931812.

Almost surely, 2^312200023212 is an apocalyptic number.

It is an amenable number.

312200023212 is an abundant number, since it is smaller than the sum of its proper divisors (684158248788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312200023212 is a wasteful number, since it uses less digits than its factorization.

312200023212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425756 (or 1425751 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 312200023212 its reverse (212320002213), we get a palindrome (524520025425).

The spelling of 312200023212 in words is "three hundred twelve billion, two hundred million, twenty-three thousand, two hundred twelve".