22521234223 has 4 divisors (see below), whose sum is σ = 23706562360. Its totient is φ = 21335906088.

The previous prime is 22521234199. The next prime is 22521234233. The reversal of 22521234223 is 32243212522.

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 22521234223 - 2²¹ = 22519137071 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22521234191 and 22521234200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22521234233) 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, 592664040 + ... + 592664077.

It is an arithmetic number, because the mean of its divisors is an integer number (5926640590).

Almost surely, 2^22521234223 is an apocalyptic number.

22521234223 is a deficient number, since it is larger than the sum of its proper divisors (1185328137).

22521234223 is a wasteful number, since it uses less digits than its factorization.

22521234223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185328136.

The product of its digits is 11520, while the sum is 28.

Adding to 22521234223 its reverse (32243212522), we get a palindrome (54764446745).

The spelling of 22521234223 in words is "twenty-two billion, five hundred twenty-one million, two hundred thirty-four thousand, two hundred twenty-three".