13221110191 has 2 divisors, whose sum is σ = 13221110192. Its totient is φ = 13221110190.

The previous prime is 13221110183. The next prime is 13221110207. The reversal of 13221110191 is 19101112231.

It is a weak prime.

It is an emirp because it is prime and its reverse (19101112231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13221110191 - 2³ = 13221110183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13221120191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610555095 + 6610555096.

It is an arithmetic number, because the mean of its divisors is an integer number (6610555096).

Almost surely, 2^13221110191 is an apocalyptic number.

13221110191 is a deficient number, since it is larger than the sum of its proper divisors (1).

13221110191 is an equidigital number, since it uses as much as digits as its factorization.

13221110191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 22.

The spelling of 13221110191 in words is "thirteen billion, two hundred twenty-one million, one hundred ten thousand, one hundred ninety-one".