221201202222241 has 2 divisors, whose sum is σ = 221201202222242. Its totient is φ = 221201202222240.

The previous prime is 221201202222167. The next prime is 221201202222281. The reversal of 221201202222241 is 142222202102122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221168085501841 + 33116720400 = 14871721^2 + 181980^2 .

It is a cyclic number.

It is not a de Polignac number, because 221201202222241 - 2¹⁷ = 221201202091169 is a prime.

It is not a weakly prime, because it can be changed into another prime (221201202222281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110600601111120 + 110600601111121.

It is an arithmetic number, because the mean of its divisors is an integer number (110600601111121).

Almost surely, 2^{221201202222241} is an apocalyptic number.

It is an amenable number.

221201202222241 is a deficient number, since it is larger than the sum of its proper divisors (1).

221201202222241 is an equidigital number, since it uses as much as digits as its factorization.

221201202222241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 221201202222241 its reverse (142222202102122), we get a palindrome (363423404324363).

The spelling of 221201202222241 in words is "two hundred twenty-one trillion, two hundred one billion, two hundred two million, two hundred twenty-two thousand, two hundred forty-one".