22131111233 has 8 divisors (see below), whose sum is σ = 27592034880. Its totient is φ = 17245021680.

The previous prime is 22131111187. The next prime is 22131111239. The reversal of 22131111233 is 33211113122.

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 22131111233 - 2³⁰ = 21057369409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22131111239) 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, 143708438 + ... + 143708591.

It is an arithmetic number, because the mean of its divisors is an integer number (3449004360).

Almost surely, 2^22131111233 is an apocalyptic number.

It is an amenable number.

22131111233 is a deficient number, since it is larger than the sum of its proper divisors (5460923647).

22131111233 is a wasteful number, since it uses less digits than its factorization.

22131111233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287417047.

The product of its digits is 216, while the sum is 20.

Adding to 22131111233 its reverse (33211113122), we get a palindrome (55342224355).

The spelling of 22131111233 in words is "twenty-two billion, one hundred thirty-one million, one hundred eleven thousand, two hundred thirty-three".