22172317198 has 8 divisors (see below), whose sum is σ = 34405319880. Its totient is φ = 10703877240.

The previous prime is 22172317187. The next prime is 22172317217. The reversal of 22172317198 is 89171327122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×22172317198² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191140608 + ... + 191140723.

It is an arithmetic number, because the mean of its divisors is an integer number (4300664985).

Almost surely, 2^22172317198 is an apocalyptic number.

22172317198 is a deficient number, since it is larger than the sum of its proper divisors (12233002682).

22172317198 is a wasteful number, since it uses less digits than its factorization.

22172317198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382281362.

The product of its digits is 84672, while the sum is 43.

The spelling of 22172317198 in words is "twenty-two billion, one hundred seventy-two million, three hundred seventeen thousand, one hundred ninety-eight".