22112200123 has 16 divisors (see below), whose sum is σ = 24293263456. Its totient is φ = 20003293440.

The previous prime is 22112200091. The next prime is 22112200141. The reversal of 22112200123 is 32100221122.

It is a happy number.

It is not a de Polignac number, because 22112200123 - 2⁵ = 22112200091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22112200097 and 22112200106.

It is not an unprimeable number, because it can be changed into a prime (22112200183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74788 + ... + 223198.

It is an arithmetic number, because the mean of its divisors is an integer number (1518328966).

Almost surely, 2^22112200123 is an apocalyptic number.

22112200123 is a deficient number, since it is larger than the sum of its proper divisors (2181063333).

22112200123 is a wasteful number, since it uses less digits than its factorization.

22112200123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148654.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 22112200123 its reverse (32100221122), we get a palindrome (54212421245).

The spelling of 22112200123 in words is "twenty-two billion, one hundred twelve million, two hundred thousand, one hundred twenty-three".