22131112233 has 32 divisors (see below), whose sum is σ = 31242795264. Its totient is φ = 13905948672.

The previous prime is 22131112217. The next prime is 22131112249. The reversal of 22131112233 is 33221113122.

It is an interprime number because it is at equal distance from previous prime (22131112217) and next prime (22131112249).

It is not a de Polignac number, because 22131112233 - 2⁴ = 22131112217 is a prime.

It is a super-2 number, since 2×22131112233² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22131112273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9735385 + ... + 9737657.

It is an arithmetic number, because the mean of its divisors is an integer number (976337352).

Almost surely, 2^22131112233 is an apocalyptic number.

22131112233 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

22131112233 is a deficient number, since it is larger than the sum of its proper divisors (9111683031).

22131112233 is a wasteful number, since it uses less digits than its factorization.

22131112233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4305.

The product of its digits is 432, while the sum is 21.

Adding to 22131112233 its reverse (33221113122), we get a palindrome (55352225355).

The spelling of 22131112233 in words is "twenty-two billion, one hundred thirty-one million, one hundred twelve thousand, two hundred thirty-three".