12221120013313 has 4 divisors (see below), whose sum is σ = 12221206320708. Its totient is φ = 12221033705920.

The previous prime is 12221120013259. The next prime is 12221120013329. The reversal of 12221120013313 is 31331002112221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11587706181184 + 633413832129 = 3404072^2 + 795873^2 .

It is a cyclic number.

It is not a de Polignac number, because 12221120013313 - 2²⁵ = 12221086458881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12221120013343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42940948 + ... + 43224613.

It is an arithmetic number, because the mean of its divisors is an integer number (3055301580177).

Almost surely, 2^{12221120013313} is an apocalyptic number.

It is an amenable number.

12221120013313 is a deficient number, since it is larger than the sum of its proper divisors (86307395).

12221120013313 is an equidigital number, since it uses as much as digits as its factorization.

12221120013313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86307394.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12221120013313 its reverse (31331002112221), we get a palindrome (43552122125534).

The spelling of 12221120013313 in words is "twelve trillion, two hundred twenty-one billion, one hundred twenty million, thirteen thousand, three hundred thirteen".