22113221123 has 12 divisors (see below), whose sum is σ = 25893906192. Its totient is φ = 18828658800.

The previous prime is 22113221113. The next prime is 22113221129. The reversal of 22113221123 is 32112231122.

It is not a de Polignac number, because 22113221123 - 2¹⁶ = 22113155587 is a prime.

It is a super-2 number, since 2×22113221123² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22113221095 and 22113221104.

It is not an unprimeable number, because it can be changed into a prime (22113221129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1486940 + ... + 1501737.

It is an arithmetic number, because the mean of its divisors is an integer number (2157825516).

Almost surely, 2^22113221123 is an apocalyptic number.

22113221123 is a deficient number, since it is larger than the sum of its proper divisors (3780685069).

22113221123 is a wasteful number, since it uses less digits than its factorization.

22113221123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2988842 (or 2988835 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

Adding to 22113221123 its reverse (32112231122), we get a palindrome (54225452245).

Subtracting 22113221123 from its reverse (32112231122), we obtain a palindrome (9999009999).

The spelling of 22113221123 in words is "twenty-two billion, one hundred thirteen million, two hundred twenty-one thousand, one hundred twenty-three".