312202213331212 has 24 divisors (see below), whose sum is σ = 553308386621760. Its totient is φ = 154114378878720.

The previous prime is 312202213331201. The next prime is 312202213331249. The reversal of 312202213331212 is 212133312202213.

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, 29968723 + ... + 39019594.

It is an arithmetic number, because the mean of its divisors is an integer number (23054516109240).

Almost surely, 2^{312202213331212} is an apocalyptic number.

It is an amenable number.

312202213331212 is a deficient number, since it is larger than the sum of its proper divisors (241106173290548).

312202213331212 is a wasteful number, since it uses less digits than its factorization.

312202213331212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69002721 (or 69002719 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 312202213331212 its reverse (212133312202213), we get a palindrome (524335525533425).

The spelling of 312202213331212 in words is "three hundred twelve trillion, two hundred two billion, two hundred thirteen million, three hundred thirty-one thousand, two hundred twelve".