12220344313 has 2 divisors, whose sum is σ = 12220344314. Its totient is φ = 12220344312.

The previous prime is 12220344289. The next prime is 12220344319. The reversal of 12220344313 is 31344302221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11657089024 + 563255289 = 107968^2 + 23733^2 .

It is a cyclic number.

It is not a de Polignac number, because 12220344313 - 2⁵ = 12220344281 is a prime.

It is not a weakly prime, because it can be changed into another prime (12220344319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110172156 + 6110172157.

It is an arithmetic number, because the mean of its divisors is an integer number (6110172157).

Almost surely, 2^12220344313 is an apocalyptic number.

It is an amenable number.

12220344313 is a deficient number, since it is larger than the sum of its proper divisors (1).

12220344313 is an equidigital number, since it uses as much as digits as its factorization.

12220344313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 12220344313 its reverse (31344302221), we get a palindrome (43564646534).

The spelling of 12220344313 in words is "twelve billion, two hundred twenty million, three hundred forty-four thousand, three hundred thirteen".