12221010313013 has 6 divisors (see below), whose sum is σ = 12982180505826. Its totient is φ = 11502127353152.

The previous prime is 12221010312961. The next prime is 12221010313027. The reversal of 12221010313013 is 31031301012221.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 4631547322609 + 7589462990404 = 2152103^2 + 2754898^2 .

It is not a de Polignac number, because 12221010313013 - 2²⁸ = 12220741877557 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 (12221010313613) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21143616170 + ... + 21143616747.

It is an arithmetic number, because the mean of its divisors is an integer number (2163696750971).

Almost surely, 2^{12221010313013} is an apocalyptic number.

It is an amenable number.

12221010313013 is a deficient number, since it is larger than the sum of its proper divisors (761170192813).

12221010313013 is an equidigital number, since it uses as much as digits as its factorization.

12221010313013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42287232951 (or 42287232934 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 12221010313013 its reverse (31031301012221), we get a palindrome (43252311325234).

The spelling of 12221010313013 in words is "twelve trillion, two hundred twenty-one billion, ten million, three hundred thirteen thousand, thirteen".