12220457407513 has 4 divisors (see below), whose sum is σ = 12220467642880. Its totient is φ = 12220447172148.

The previous prime is 12220457407469. The next prime is 12220457407517. The reversal of 12220457407513 is 31570475402221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12220457407513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12220457407513.

It is not an unprimeable number, because it can be changed into a prime (12220457407517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3047673 + ... + 5807686.

It is an arithmetic number, because the mean of its divisors is an integer number (3055116910720).

Almost surely, 2^{12220457407513} is an apocalyptic number.

It is an amenable number.

12220457407513 is a deficient number, since it is larger than the sum of its proper divisors (10235367).

12220457407513 is an equidigital number, since it uses as much as digits as its factorization.

12220457407513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10235366.

The product of its (nonzero) digits is 470400, while the sum is 43.

The spelling of 12220457407513 in words is "twelve trillion, two hundred twenty billion, four hundred fifty-seven million, four hundred seven thousand, five hundred thirteen".