23330432221 has 2 divisors, whose sum is σ = 23330432222. Its totient is φ = 23330432220.

The previous prime is 23330432219. The next prime is 23330432231. The reversal of 23330432221 is 12223403332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12568652100 + 10761780121 = 112110^2 + 103739^2 .

It is a cyclic number.

It is not a de Polignac number, because 23330432221 - 2¹ = 23330432219 is a prime.

Together with 23330432219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23330432201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11665216110 + 11665216111.

It is an arithmetic number, because the mean of its divisors is an integer number (11665216111).

Almost surely, 2^23330432221 is an apocalyptic number.

It is an amenable number.

23330432221 is a deficient number, since it is larger than the sum of its proper divisors (1).

23330432221 is an equidigital number, since it uses as much as digits as its factorization.

23330432221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 23330432221 its reverse (12223403332), we get a palindrome (35553835553).

The spelling of 23330432221 in words is "twenty-three billion, three hundred thirty million, four hundred thirty-two thousand, two hundred twenty-one".