23330322221 has 2 divisors, whose sum is σ = 23330322222. Its totient is φ = 23330322220.

The previous prime is 23330322203. The next prime is 23330322233. The reversal of 23330322221 is 12222303332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20560405321 + 2769916900 = 143389^2 + 52630^2 .

It is a cyclic number.

It is not a de Polignac number, because 23330322221 - 2⁶ = 23330322157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23330321221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11665161110 + 11665161111.

It is an arithmetic number, because the mean of its divisors is an integer number (11665161111).

Almost surely, 2^23330322221 is an apocalyptic number.

It is an amenable number.

23330322221 is a deficient number, since it is larger than the sum of its proper divisors (1).

23330322221 is an equidigital number, since it uses as much as digits as its factorization.

23330322221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 23330322221 its reverse (12222303332), we get a palindrome (35552625553).

The spelling of 23330322221 in words is "twenty-three billion, three hundred thirty million, three hundred twenty-two thousand, two hundred twenty-one".