22172104171675 has 12 divisors (see below), whose sum is σ = 27623709696856. Its totient is φ = 17653618483200.

The previous prime is 22172104171673. The next prime is 22172104171681. The reversal of 22172104171675 is 57617140127122.

It is not a de Polignac number, because 22172104171675 - 2¹ = 22172104171673 is a prime.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22172104171673) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2101615974 + ... + 2101626523.

Almost surely, 2^{22172104171675} is an apocalyptic number.

22172104171675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22172104171675 is a deficient number, since it is larger than the sum of its proper divisors (5451605525181).

22172104171675 is a wasteful number, since it uses less digits than its factorization.

22172104171675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4203242718 (or 4203242713 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 46.

Adding to 22172104171675 its reverse (57617140127122), we get a palindrome (79789244298797).

The spelling of 22172104171675 in words is "twenty-two trillion, one hundred seventy-two billion, one hundred four million, one hundred seventy-one thousand, six hundred seventy-five".