23221220223 has 8 divisors (see below), whose sum is σ = 30966565936. Its totient is φ = 15478344000.

The previous prime is 23221220161. The next prime is 23221220317. The reversal of 23221220223 is 32202212232.

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

It is not a de Polignac number, because 23221220223 - 2¹⁰ = 23221219199 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23221220223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23221220423) 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, 595318 + ... + 633123.

It is an arithmetic number, because the mean of its divisors is an integer number (3870820742).

Almost surely, 2^23221220223 is an apocalyptic number.

23221220223 is a deficient number, since it is larger than the sum of its proper divisors (7745345713).

23221220223 is a wasteful number, since it uses less digits than its factorization.

23221220223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234745.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 23221220223 its reverse (32202212232), we get a palindrome (55423432455).

The spelling of 23221220223 in words is "twenty-three billion, two hundred twenty-one million, two hundred twenty thousand, two hundred twenty-three".