23233330221 has 4 divisors (see below), whose sum is σ = 30977773632. Its totient is φ = 15488886812.

The previous prime is 23233330171. The next prime is 23233330243. The reversal of 23233330221 is 12203333232.

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 23233330221 - 2⁹ = 23233329709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23233330191 and 23233330200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23233330121) 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, 3872221701 + ... + 3872221706.

It is an arithmetic number, because the mean of its divisors is an integer number (7744443408).

Almost surely, 2^23233330221 is an apocalyptic number.

It is an amenable number.

23233330221 is a deficient number, since it is larger than the sum of its proper divisors (7744443411).

23233330221 is an equidigital number, since it uses as much as digits as its factorization.

23233330221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7744443410.

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

Adding to 23233330221 its reverse (12203333232), we get a palindrome (35436663453).

The spelling of 23233330221 in words is "twenty-three billion, two hundred thirty-three million, three hundred thirty thousand, two hundred twenty-one".