222201020222201 has 2 divisors, whose sum is σ = 222201020222202. Its totient is φ = 222201020222200.

The previous prime is 222201020222191. The next prime is 222201020222281. The reversal of 222201020222201 is 102222020102222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 180720271514176 + 41480748708025 = 13443224^2 + 6440555^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222201020222201 is a prime.

It is not a weakly prime, because it can be changed into another prime (222201020222281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111100510111100 + 111100510111101.

It is an arithmetic number, because the mean of its divisors is an integer number (111100510111101).

Almost surely, 2^{222201020222201} is an apocalyptic number.

It is an amenable number.

222201020222201 is a deficient number, since it is larger than the sum of its proper divisors (1).

222201020222201 is an equidigital number, since it uses as much as digits as its factorization.

222201020222201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 222201020222201 its reverse (102222020102222), we get a palindrome (324423040324423).

The spelling of 222201020222201 in words is "two hundred twenty-two trillion, two hundred one billion, twenty million, two hundred twenty-two thousand, two hundred one".