23033302221 has 4 divisors (see below), whose sum is σ = 30711069632. Its totient is φ = 15355534812.

The previous prime is 23033302199. The next prime is 23033302223. The reversal of 23033302221 is 12220333032.

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 not a de Polignac number, because 23033302221 - 2¹⁴ = 23033285837 is a prime.

It is a super-2 number, since 2×23033302221² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23033302223) 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, 3838883701 + ... + 3838883706.

It is an arithmetic number, because the mean of its divisors is an integer number (7677767408).

Almost surely, 2^23033302221 is an apocalyptic number.

It is an amenable number.

23033302221 is a deficient number, since it is larger than the sum of its proper divisors (7677767411).

23033302221 is an equidigital number, since it uses as much as digits as its factorization.

23033302221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7677767410.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 23033302221 its reverse (12220333032), we get a palindrome (35253635253).

The spelling of 23033302221 in words is "twenty-three billion, thirty-three million, three hundred two thousand, two hundred twenty-one".