23202232322221 has 2 divisors, whose sum is σ = 23202232322222. Its totient is φ = 23202232322220.

The previous prime is 23202232322189. The next prime is 23202232322273. The reversal of 23202232322221 is 12222323220232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23098731780996 + 103500541225 = 4806114^2 + 321715^2 .

It is a cyclic number.

It is not a de Polignac number, because 23202232322221 - 2⁵ = 23202232322189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23202232322221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23202235322221) 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, 11601116161110 + 11601116161111.

It is an arithmetic number, because the mean of its divisors is an integer number (11601116161111).

Almost surely, 2^{23202232322221} is an apocalyptic number.

It is an amenable number.

23202232322221 is a deficient number, since it is larger than the sum of its proper divisors (1).

23202232322221 is an equidigital number, since it uses as much as digits as its factorization.

23202232322221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 23202232322221 its reverse (12222323220232), we get a palindrome (35424555542453).

The spelling of 23202232322221 in words is "twenty-three trillion, two hundred two billion, two hundred thirty-two million, three hundred twenty-two thousand, two hundred twenty-one".