202222002002221 has 2 divisors, whose sum is σ = 202222002002222. Its totient is φ = 202222002002220.

The previous prime is 202222002002179. The next prime is 202222002002227. The reversal of 202222002002221 is 122200200222202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 172204599155625 + 30017402846596 = 13122675^2 + 5478814^2 .

It is a cyclic number.

It is not a de Polignac number, because 202222002002221 - 2¹⁵ = 202222001969453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202222002002227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101111001001110 + 101111001001111.

It is an arithmetic number, because the mean of its divisors is an integer number (101111001001111).

Almost surely, 2^{202222002002221} is an apocalyptic number.

It is an amenable number.

202222002002221 is a deficient number, since it is larger than the sum of its proper divisors (1).

202222002002221 is an equidigital number, since it uses as much as digits as its factorization.

202222002002221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 202222002002221 its reverse (122200200222202), we get a palindrome (324422202224423).

The spelling of 202222002002221 in words is "two hundred two trillion, two hundred twenty-two billion, two million, two thousand, two hundred twenty-one".