312220012213213 has 32 divisors (see below), whose sum is σ = 348790103101440. Its totient is φ = 277498131482880.

The previous prime is 312220012213181. The next prime is 312220012213253. The reversal of 312220012213213 is 312312210022213.

It is a cyclic number.

It is not a de Polignac number, because 312220012213213 - 2⁵ = 312220012213181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312220012213253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2044974868 + ... + 2045127538.

It is an arithmetic number, because the mean of its divisors is an integer number (10899690721920).

Almost surely, 2^{312220012213213} is an apocalyptic number.

It is an amenable number.

312220012213213 is a deficient number, since it is larger than the sum of its proper divisors (36570090888227).

312220012213213 is a wasteful number, since it uses less digits than its factorization.

312220012213213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167629.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 312220012213213 its reverse (312312210022213), we get a palindrome (624532222235426).

The spelling of 312220012213213 in words is "three hundred twelve trillion, two hundred twenty billion, twelve million, two hundred thirteen thousand, two hundred thirteen".