223032222221 has 2 divisors, whose sum is σ = 223032222222. Its totient is φ = 223032222220.

The previous prime is 223032222173. The next prime is 223032222251. The reversal of 223032222221 is 122222230322.

223032222221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132051565321 + 90980656900 = 363389^2 + 301630^2 .

It is a cyclic number.

It is not a de Polignac number, because 223032222221 - 2¹⁸ = 223031960077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223032222251) 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, 111516111110 + 111516111111.

It is an arithmetic number, because the mean of its divisors is an integer number (111516111111).

Almost surely, 2^223032222221 is an apocalyptic number.

It is an amenable number.

223032222221 is a deficient number, since it is larger than the sum of its proper divisors (1).

223032222221 is an equidigital number, since it uses as much as digits as its factorization.

223032222221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 223032222221 its reverse (122222230322), we get a palindrome (345254452543).

The spelling of 223032222221 in words is "two hundred twenty-three billion, thirty-two million, two hundred twenty-two thousand, two hundred twenty-one".