23242302221 has 4 divisors (see below), whose sum is σ = 23271032700. Its totient is φ = 23213571744.

The previous prime is 23242302191. The next prime is 23242302253. The reversal of 23242302221 is 12220324232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18546626596 + 4695675625 = 136186^2 + 68525^2 .

It is a cyclic number.

It is not a de Polignac number, because 23242302221 - 2¹⁰ = 23242301197 is a prime.

It is a super-2 number, since 2×23242302221² (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 (23242301221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14364026 + ... + 14365643.

It is an arithmetic number, because the mean of its divisors is an integer number (5817758175).

Almost surely, 2^23242302221 is an apocalyptic number.

It is an amenable number.

23242302221 is a deficient number, since it is larger than the sum of its proper divisors (28730479).

23242302221 is an equidigital number, since it uses as much as digits as its factorization.

23242302221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28730478.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 23242302221 its reverse (12220324232), we get a palindrome (35462626453).

The spelling of 23242302221 in words is "twenty-three billion, two hundred forty-two million, three hundred two thousand, two hundred twenty-one".