22144220423 has 8 divisors (see below), whose sum is σ = 23853136608. Its totient is φ = 20436092064.

The previous prime is 22144220401. The next prime is 22144220447. The reversal of 22144220423 is 32402244122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22144220423 - 2⁸ = 22144220167 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22144220392 and 22144220401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22144220473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137915 + ... + 251612.

It is an arithmetic number, because the mean of its divisors is an integer number (2981642076).

Almost surely, 2^22144220423 is an apocalyptic number.

22144220423 is a deficient number, since it is larger than the sum of its proper divisors (1708916185).

22144220423 is a wasteful number, since it uses less digits than its factorization.

22144220423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393913.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 22144220423 its reverse (32402244122), we get a palindrome (54546464545).

The spelling of 22144220423 in words is "twenty-two billion, one hundred forty-four million, two hundred twenty thousand, four hundred twenty-three".