23221033233 has 4 divisors (see below), whose sum is σ = 30961377648. Its totient is φ = 15480688820.

The previous prime is 23221033223. The next prime is 23221033291. The reversal of 23221033233 is 33233012232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23221033233 - 2¹⁰ = 23221032209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23221033223) 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, 3870172203 + ... + 3870172208.

It is an arithmetic number, because the mean of its divisors is an integer number (7740344412).

Almost surely, 2^23221033233 is an apocalyptic number.

It is an amenable number.

23221033233 is a deficient number, since it is larger than the sum of its proper divisors (7740344415).

23221033233 is an equidigital number, since it uses as much as digits as its factorization.

23221033233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7740344414.

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 23221033233 its reverse (33233012232), we get a palindrome (56454045465).

The spelling of 23221033233 in words is "twenty-three billion, two hundred twenty-one million, thirty-three thousand, two hundred thirty-three".