22122423 has 16 divisors (see below), whose sum is σ = 34702560. Its totient is φ = 13880448.

The previous prime is 22122421. The next prime is 22122427. The reversal of 22122423 is 32422122.

22122423 is a `hidden beast` number, since 221 + 22 + 423 = 666.

It is not a de Polignac number, because 22122423 - 2¹ = 22122421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22122396 and 22122405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22122421) 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, 23640 + ... + 24557.

It is an arithmetic number, because the mean of its divisors is an integer number (2168910).

Almost surely, 2^22122423 is an apocalyptic number.

22122423 is a deficient number, since it is larger than the sum of its proper divisors (12580137).

22122423 is a wasteful number, since it uses less digits than its factorization.

22122423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48223 (or 48217 counting only the distinct ones).

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

The square root of 22122423 is about 4703.4479905703. The cubic root of 22122423 is about 280.7227205337.

Adding to 22122423 its reverse (32422122), we get a palindrome (54544545).

The spelling of 22122423 in words is "twenty-two million, one hundred twenty-two thousand, four hundred twenty-three".