22021233223 has 12 divisors (see below), whose sum is σ = 24208746184. Its totient is φ = 20016334800.

The previous prime is 22021233211. The next prime is 22021233239. The reversal of 22021233223 is 32233212022.

It is not a de Polignac number, because 22021233223 - 2²¹ = 22019136071 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22021233194 and 22021233203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021233293) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1601365 + ... + 1615057.

Almost surely, 2^22021233223 is an apocalyptic number.

22021233223 is a deficient number, since it is larger than the sum of its proper divisors (2187512961).

22021233223 is a wasteful number, since it uses less digits than its factorization.

22021233223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27006 (or 26995 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 22021233223 its reverse (32233212022), we get a palindrome (54254445245).

The spelling of 22021233223 in words is "twenty-two billion, twenty-one million, two hundred thirty-three thousand, two hundred twenty-three".