222013323221 has 2 divisors, whose sum is σ = 222013323222. Its totient is φ = 222013323220.

The previous prime is 222013323173. The next prime is 222013323227. The reversal of 222013323221 is 122323310222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165661210225 + 56352112996 = 407015^2 + 237386^2 .

It is a cyclic number.

It is not a de Polignac number, because 222013323221 - 2³⁰ = 220939581397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222013323227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111006661610 + 111006661611.

It is an arithmetic number, because the mean of its divisors is an integer number (111006661611).

Almost surely, 2^222013323221 is an apocalyptic number.

It is an amenable number.

222013323221 is a deficient number, since it is larger than the sum of its proper divisors (1).

222013323221 is an equidigital number, since it uses as much as digits as its factorization.

222013323221 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 222013323221 its reverse (122323310222), we get a palindrome (344336633443).

The spelling of 222013323221 in words is "two hundred twenty-two billion, thirteen million, three hundred twenty-three thousand, two hundred twenty-one".