23322473221 has 4 divisors (see below), whose sum is σ = 23322851200. Its totient is φ = 23322095244.

The previous prime is 23322473159. The next prime is 23322473227. The reversal of 23322473221 is 12237422332.

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 23322473221 - 2²¹ = 23320376069 is a prime.

It is a super-2 number, since 2×23322473221² (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 (23322473227) 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, 72501 + ... + 227818.

It is an arithmetic number, because the mean of its divisors is an integer number (5830712800).

Almost surely, 2^23322473221 is an apocalyptic number.

It is an amenable number.

23322473221 is a deficient number, since it is larger than the sum of its proper divisors (377979).

23322473221 is an equidigital number, since it uses as much as digits as its factorization.

23322473221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377978.

The product of its digits is 24192, while the sum is 31.

Adding to 23322473221 its reverse (12237422332), we get a palindrome (35559895553).

The spelling of 23322473221 in words is "twenty-three billion, three hundred twenty-two million, four hundred seventy-three thousand, two hundred twenty-one".