22115522131 has 8 divisors (see below), whose sum is σ = 23282553600. Its totient is φ = 20948796360.

The previous prime is 22115522129. The next prime is 22115522141. The reversal of 22115522131 is 13122551122.

It is a happy number.

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 22115522131 - 2¹ = 22115522129 is a prime.

It is a super-2 number, since 2×22115522131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22115522096 and 22115522105.

It is not an unprimeable number, because it can be changed into a prime (22115522141) 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, 80346 + ... + 225136.

It is an arithmetic number, because the mean of its divisors is an integer number (2910319200).

Almost surely, 2^22115522131 is an apocalyptic number.

22115522131 is a deficient number, since it is larger than the sum of its proper divisors (1167031469).

22115522131 is a wasteful number, since it uses less digits than its factorization.

22115522131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152849.

The product of its digits is 1200, while the sum is 25.

The spelling of 22115522131 in words is "twenty-two billion, one hundred fifteen million, five hundred twenty-two thousand, one hundred thirty-one".