23021332200221 has 2 divisors, whose sum is σ = 23021332200222. Its totient is φ = 23021332200220.

The previous prime is 23021332200193. The next prime is 23021332200227. The reversal of 23021332200221 is 12200223312032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19852469383321 + 3168862816900 = 4455611^2 + 1780130^2 .

It is a cyclic number.

It is not a de Polignac number, because 23021332200221 - 2⁶ = 23021332200157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23021332200227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11510666100110 + 11510666100111.

It is an arithmetic number, because the mean of its divisors is an integer number (11510666100111).

Almost surely, 2^{23021332200221} is an apocalyptic number.

It is an amenable number.

23021332200221 is a deficient number, since it is larger than the sum of its proper divisors (1).

23021332200221 is an equidigital number, since it uses as much as digits as its factorization.

23021332200221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 23021332200221 its reverse (12200223312032), we get a palindrome (35221555512253).

The spelling of 23021332200221 in words is "twenty-three trillion, twenty-one billion, three hundred thirty-two million, two hundred thousand, two hundred twenty-one".