22242123 has 6 divisors (see below), whose sum is σ = 32127524. Its totient is φ = 14828076.

The previous prime is 22242109. The next prime is 22242161. The reversal of 22242123 is 32124222.

22242123 is a `hidden beast` number, since 222 + 421 + 23 = 666.

It is not a de Polignac number, because 22242123 - 2⁴ = 22242107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22242096 and 22242105.

It is not an unprimeable number, because it can be changed into a prime (22242193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1235665 + ... + 1235682.

Almost surely, 2^22242123 is an apocalyptic number.

22242123 is a deficient number, since it is larger than the sum of its proper divisors (9885401).

22242123 is a wasteful number, since it uses less digits than its factorization.

22242123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2471353 (or 2471350 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 22242123 is about 4716.1555317865. The cubic root of 22242123 is about 281.2281215574.

Adding to 22242123 its reverse (32124222), we get a palindrome (54366345).

The spelling of 22242123 in words is "twenty-two million, two hundred forty-two thousand, one hundred twenty-three".