222102300221 has 2 divisors, whose sum is σ = 222102300222. Its totient is φ = 222102300220.

The previous prime is 222102300209. The next prime is 222102300229. The reversal of 222102300221 is 122003201222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161986125625 + 60116174596 = 402475^2 + 245186^2 .

It is a cyclic number.

It is not a de Polignac number, because 222102300221 - 2⁶ = 222102300157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222102300221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222102300229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111051150110 + 111051150111.

It is an arithmetic number, because the mean of its divisors is an integer number (111051150111).

Almost surely, 2^222102300221 is an apocalyptic number.

It is an amenable number.

222102300221 is a deficient number, since it is larger than the sum of its proper divisors (1).

222102300221 is an equidigital number, since it uses as much as digits as its factorization.

222102300221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 222102300221 its reverse (122003201222), we get a palindrome (344105501443).

The spelling of 222102300221 in words is "two hundred twenty-two billion, one hundred two million, three hundred thousand, two hundred twenty-one".