312202213312 has 56 divisors (see below), whose sum is σ = 685365916032. Its totient is φ = 139911340800.

The previous prime is 312202213273. The next prime is 312202213313. The reversal of 312202213312 is 213312202213.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312202213313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3073038 + ... + 3173005.

It is an arithmetic number, because the mean of its divisors is an integer number (12238677072).

Almost surely, 2^312202213312 is an apocalyptic number.

312202213312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

312202213312 is an abundant number, since it is smaller than the sum of its proper divisors (373163702720).

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

312202213312 is a wasteful number, since it uses less digits than its factorization.

312202213312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6246137 (or 6246127 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 312202213312 its reverse (213312202213), we get a palindrome (525514415525).

The spelling of 312202213312 in words is "three hundred twelve billion, two hundred two million, two hundred thirteen thousand, three hundred twelve".