22153131173 has 4 divisors (see below), whose sum is σ = 22258122528. Its totient is φ = 22048139820.

The previous prime is 22153131157. The next prime is 22153131179. The reversal of 22153131173 is 37113135122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22153131173 - 2⁴ = 22153131157 is a prime.

It is a super-2 number, since 2×22153131173² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22153131179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52495361 + ... + 52495782.

It is an arithmetic number, because the mean of its divisors is an integer number (5564530632).

Almost surely, 2^22153131173 is an apocalyptic number.

It is an amenable number.

22153131173 is a deficient number, since it is larger than the sum of its proper divisors (104991355).

22153131173 is a wasteful number, since it uses less digits than its factorization.

22153131173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104991354.

The product of its digits is 3780, while the sum is 29.

Adding to 22153131173 its reverse (37113135122), we get a palindrome (59266266295).

The spelling of 22153131173 in words is "twenty-two billion, one hundred fifty-three million, one hundred thirty-one thousand, one hundred seventy-three".