22112235553 has 4 divisors (see below), whose sum is σ = 22118627988. Its totient is φ = 22105843120.

The previous prime is 22112235493. The next prime is 22112235571. The reversal of 22112235553 is 35553221122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9159064209 + 12953171344 = 95703^2 + 113812^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22112235553 is a prime.

It is a super-2 number, since 2×22112235553² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22112235583) 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, 3191026 + ... + 3197947.

It is an arithmetic number, because the mean of its divisors is an integer number (5529656997).

Almost surely, 2^22112235553 is an apocalyptic number.

It is an amenable number.

22112235553 is a deficient number, since it is larger than the sum of its proper divisors (6392435).

22112235553 is an equidigital number, since it uses as much as digits as its factorization.

22112235553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6392434.

The product of its digits is 18000, while the sum is 31.

Adding to 22112235553 its reverse (35553221122), we get a palindrome (57665456675).

The spelling of 22112235553 in words is "twenty-two billion, one hundred twelve million, two hundred thirty-five thousand, five hundred fifty-three".