22222123 has 16 divisors (see below), whose sum is σ = 28385280. Its totient is φ = 16891200.

The previous prime is 22222097. The next prime is 22222129. The reversal of 22222123 is 32122222.

It is a cyclic number.

It is not a de Polignac number, because 22222123 - 2¹⁷ = 22091051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22222097 and 22222106.

It is not an unprimeable number, because it can be changed into a prime (22222129) 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, 363 + ... + 6676.

It is an arithmetic number, because the mean of its divisors is an integer number (1774080).

Almost surely, 2^22222123 is an apocalyptic number.

22222123 is a deficient number, since it is larger than the sum of its proper divisors (6163157).

22222123 is a wasteful number, since it uses less digits than its factorization.

22222123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7098.

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

The square root of 22222123 is about 4714.0346837926. The cubic root of 22222123 is about 281.1438033303.

Adding to 22222123 its reverse (32122222), we get a palindrome (54344345).

Subtracting 22222123 from its reverse (32122222), we obtain a palindrome (9900099).

The spelling of 22222123 in words is "twenty-two million, two hundred twenty-two thousand, one hundred twenty-three".