22117252145 has 8 divisors (see below), whose sum is σ = 26544977856. Its totient is φ = 17690951536.

The previous prime is 22117252117. The next prime is 22117252159. The reversal of 22117252145 is 54125271122.

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 22117252145 - 2³⁰ = 21043510321 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321827 + ... + 384456.

It is an arithmetic number, because the mean of its divisors is an integer number (3318122232).

Almost surely, 2^22117252145 is an apocalyptic number.

It is an amenable number.

22117252145 is a deficient number, since it is larger than the sum of its proper divisors (4427725711).

22117252145 is an equidigital number, since it uses as much as digits as its factorization.

22117252145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712551.

The product of its digits is 11200, while the sum is 32.

The spelling of 22117252145 in words is "twenty-two billion, one hundred seventeen million, two hundred fifty-two thousand, one hundred forty-five".