202210022221 has 2 divisors, whose sum is σ = 202210022222. Its totient is φ = 202210022220.

The previous prime is 202210022153. The next prime is 202210022237. The reversal of 202210022221 is 122220012202.

It is an a-pointer prime, because the next prime (202210022237) can be obtained adding 202210022221 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 171764658025 + 30445364196 = 414445^2 + 174486^2 .

It is a cyclic number.

It is not a de Polignac number, because 202210022221 - 2³³ = 193620087629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202210022195 and 202210022204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202210062221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101105011110 + 101105011111.

It is an arithmetic number, because the mean of its divisors is an integer number (101105011111).

Almost surely, 2^202210022221 is an apocalyptic number.

It is an amenable number.

202210022221 is a deficient number, since it is larger than the sum of its proper divisors (1).

202210022221 is an equidigital number, since it uses as much as digits as its factorization.

202210022221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 202210022221 its reverse (122220012202), we get a palindrome (324430034423).

The spelling of 202210022221 in words is "two hundred two billion, two hundred ten million, twenty-two thousand, two hundred twenty-one".