22122122231 has 8 divisors (see below), whose sum is σ = 24295194000. Its totient is φ = 19976045440.

The previous prime is 22122122203. The next prime is 22122122251. The reversal of 22122122231 is 13222122122.

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 22122122231 - 2²² = 22117927927 is a prime.

It is a super-2 number, since 2×22122122231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22122122251) 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, 6747026 + ... + 6750303.

It is an arithmetic number, because the mean of its divisors is an integer number (3036899250).

Almost surely, 2^22122122231 is an apocalyptic number.

22122122231 is a deficient number, since it is larger than the sum of its proper divisors (2173071769).

22122122231 is a wasteful number, since it uses less digits than its factorization.

22122122231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13497489.

The product of its digits is 384, while the sum is 20.

Adding to 22122122231 its reverse (13222122122), we get a palindrome (35344244353).

The spelling of 22122122231 in words is "twenty-two billion, one hundred twenty-two million, one hundred twenty-two thousand, two hundred thirty-one".