312220221013 has 8 divisors (see below), whose sum is σ = 315105348096. Its totient is φ = 309348120000.

The previous prime is 312220221007. The next prime is 312220221043. The reversal of 312220221013 is 310122022213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312220221013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312220221043) 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, 3208356 + ... + 3304237.

It is an arithmetic number, because the mean of its divisors is an integer number (39388168512).

Almost surely, 2^312220221013 is an apocalyptic number.

It is an amenable number.

312220221013 is a deficient number, since it is larger than the sum of its proper divisors (2885127083).

312220221013 is a wasteful number, since it uses less digits than its factorization.

312220221013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6513035.

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

Adding to 312220221013 its reverse (310122022213), we get a palindrome (622342243226).

The spelling of 312220221013 in words is "three hundred twelve billion, two hundred twenty million, two hundred twenty-one thousand, thirteen".