22112423 has 4 divisors (see below), whose sum is σ = 22142928. Its totient is φ = 22081920.

The previous prime is 22112401. The next prime is 22112429. The reversal of 22112423 is 32421122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22112423 - 2¹² = 22108327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14138 + ... + 15623.

It is an arithmetic number, because the mean of its divisors is an integer number (5535732).

Almost surely, 2^22112423 is an apocalyptic number.

22112423 is a deficient number, since it is larger than the sum of its proper divisors (30505).

22112423 is an equidigital number, since it uses as much as digits as its factorization.

22112423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30504.

The product of its digits is 192, while the sum is 17.

The square root of 22112423 is about 4702.3848204927. The cubic root of 22112423 is about 280.6804157902.

Adding to 22112423 its reverse (32421122), we get a palindrome (54533545).

The spelling of 22112423 in words is "twenty-two million, one hundred twelve thousand, four hundred twenty-three".