13217722171 has 8 divisors (see below), whose sum is σ = 13406356224. Its totient is φ = 13029156840.

The previous prime is 13217722159. The next prime is 13217722211. The reversal of 13217722171 is 17122771231.

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 13217722171 - 2¹⁹ = 13217197883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13217720171) 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, 466410 + ... + 493936.

It is an arithmetic number, because the mean of its divisors is an integer number (1675794528).

Almost surely, 2^13217722171 is an apocalyptic number.

13217722171 is a deficient number, since it is larger than the sum of its proper divisors (188634053).

13217722171 is an equidigital number, since it uses as much as digits as its factorization.

13217722171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34361.

The product of its digits is 8232, while the sum is 34.

The spelling of 13217722171 in words is "thirteen billion, two hundred seventeen million, seven hundred twenty-two thousand, one hundred seventy-one".