22125831217 has 8 divisors (see below), whose sum is σ = 25395192576. Its totient is φ = 18883601952.

The previous prime is 22125831197. The next prime is 22125831239. The reversal of 22125831217 is 71213852122.

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 22125831217 - 2¹¹ = 22125829169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22125831257) 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, 6781273 + ... + 6784534.

It is an arithmetic number, because the mean of its divisors is an integer number (3174399072).

Almost surely, 2^22125831217 is an apocalyptic number.

It is an amenable number.

22125831217 is a deficient number, since it is larger than the sum of its proper divisors (3269361359).

22125831217 is a wasteful number, since it uses less digits than its factorization.

22125831217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13566047.

The product of its digits is 13440, while the sum is 34.

The spelling of 22125831217 in words is "twenty-two billion, one hundred twenty-five million, eight hundred thirty-one thousand, two hundred seventeen".