22222000123 has 16 divisors (see below), whose sum is σ = 22931294400. Its totient is φ = 21521036800.

The previous prime is 22222000117. The next prime is 22222000127. The reversal of 22222000123 is 32100022222.

It is a cyclic number.

It is not a de Polignac number, because 22222000123 - 2²⁵ = 22188445691 is a prime.

It is a super-2 number, since 2×22222000123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22222000097 and 22222000106.

It is not an unprimeable number, because it can be changed into a prime (22222000127) 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, 6441303 + ... + 6444751.

It is an arithmetic number, because the mean of its divisors is an integer number (1433205900).

Almost surely, 2^22222000123 is an apocalyptic number.

22222000123 is a deficient number, since it is larger than the sum of its proper divisors (709294277).

22222000123 is a wasteful number, since it uses less digits than its factorization.

22222000123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4598.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 22222000123 its reverse (32100022222), we get a palindrome (54322022345).

The spelling of 22222000123 in words is "twenty-two billion, two hundred twenty-two million, one hundred twenty-three", and thus it is an aban number.