13301202221 has 4 divisors (see below), whose sum is σ = 13368721212. Its totient is φ = 13233683232.

The previous prime is 13301202163. The next prime is 13301202283. The reversal of 13301202221 is 12220210331.

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 8169628996 + 5131573225 = 90386^2 + 71635^2 .

It is a cyclic number.

It is not a de Polignac number, because 13301202221 - 2⁶ = 13301202157 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 13301202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13301702221) 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, 33759200 + ... + 33759593.

It is an arithmetic number, because the mean of its divisors is an integer number (3342180303).

Almost surely, 2^13301202221 is an apocalyptic number.

It is an amenable number.

13301202221 is a deficient number, since it is larger than the sum of its proper divisors (67518991).

13301202221 is an equidigital number, since it uses as much as digits as its factorization.

13301202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67518990.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 13301202221 its reverse (12220210331), we get a palindrome (25521412552).

The spelling of 13301202221 in words is "thirteen billion, three hundred one million, two hundred two thousand, two hundred twenty-one".