22202210210221 has 2 divisors, whose sum is σ = 22202210210222. Its totient is φ = 22202210210220.

The previous prime is 22202210210209. The next prime is 22202210210239. The reversal of 22202210210221 is 12201201220222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20760143068900 + 1442067141321 = 4556330^2 + 1200861^2 .

It is a cyclic number.

It is not a de Polignac number, because 22202210210221 - 2⁷ = 22202210210093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22202210211221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11101105105110 + 11101105105111.

It is an arithmetic number, because the mean of its divisors is an integer number (11101105105111).

Almost surely, 2^{22202210210221} is an apocalyptic number.

It is an amenable number.

22202210210221 is a deficient number, since it is larger than the sum of its proper divisors (1).

22202210210221 is an equidigital number, since it uses as much as digits as its factorization.

22202210210221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22202210210221 its reverse (12201201220222), we get a palindrome (34403411430443).

The spelling of 22202210210221 in words is "twenty-two trillion, two hundred two billion, two hundred ten million, two hundred ten thousand, two hundred twenty-one".