13013033013221 has 8 divisors (see below), whose sum is σ = 13432849778688. Its totient is φ = 12593218842000.

The previous prime is 13013033013143. The next prime is 13013033013241. The reversal of 13013033013221 is 12231033031031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13013033013221 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 (13013033013241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18869516 + ... + 19546986.

It is an arithmetic number, because the mean of its divisors is an integer number (1679106222336).

Almost surely, 2^{13013033013221} is an apocalyptic number.

It is an amenable number.

13013033013221 is a deficient number, since it is larger than the sum of its proper divisors (419816765467).

13013033013221 is an equidigital number, since it uses as much as digits as its factorization.

13013033013221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297123.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 13013033013221 its reverse (12231033031031), we get a palindrome (25244066044252).

The spelling of 13013033013221 in words is "thirteen trillion, thirteen billion, thirty-three million, thirteen thousand, two hundred twenty-one".