13033002221 has 8 divisors (see below), whose sum is σ = 13295698104. Its totient is φ = 12772581120.

The previous prime is 13033002217. The next prime is 13033002251. The reversal of 13033002221 is 12220033031.

It can be written as a sum of positive squares in 4 ways, for example, as 531302500 + 12501699721 = 23050^2 + 111811^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13033002221 - 2² = 13033002217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13033002221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13033002251) 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, 557120 + ... + 580041.

It is an arithmetic number, because the mean of its divisors is an integer number (1661962263).

Almost surely, 2^13033002221 is an apocalyptic number.

It is an amenable number.

13033002221 is a deficient number, since it is larger than the sum of its proper divisors (262695883).

13033002221 is a wasteful number, since it uses less digits than its factorization.

13033002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137391.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 13033002221 its reverse (12220033031), we get a palindrome (25253035252).

The spelling of 13033002221 in words is "thirteen billion, thirty-three million, two thousand, two hundred twenty-one".