13120013313221 has 16 divisors (see below), whose sum is σ = 13916477548800. Its totient is φ = 12326297867520.

The previous prime is 13120013313161. The next prime is 13120013313263. The reversal of 13120013313221 is 12231331002131.

It is a cyclic number.

It is not a de Polignac number, because 13120013313221 - 2²⁶ = 13119946204357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13120013310221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101164400 + ... + 101294006.

It is an arithmetic number, because the mean of its divisors is an integer number (869779846800).

Almost surely, 2^{13120013313221} is an apocalyptic number.

It is an amenable number.

13120013313221 is a deficient number, since it is larger than the sum of its proper divisors (796464235579).

13120013313221 is a wasteful number, since it uses less digits than its factorization.

13120013313221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140164.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 13120013313221 its reverse (12231331002131), we get a palindrome (25351344315352).

The spelling of 13120013313221 in words is "thirteen trillion, one hundred twenty billion, thirteen million, three hundred thirteen thousand, two hundred twenty-one".