222001220002201 has 2 divisors, whose sum is σ = 222001220002202. Its totient is φ = 222001220002200.

The previous prime is 222001220002187. The next prime is 222001220002231. The reversal of 222001220002201 is 102200022100222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 150018280758025 + 71982939244176 = 12248195^2 + 8484276^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222001220002201 is a prime.

It is not a weakly prime, because it can be changed into another prime (222001220002231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111000610001100 + 111000610001101.

It is an arithmetic number, because the mean of its divisors is an integer number (111000610001101).

Almost surely, 2^{222001220002201} is an apocalyptic number.

It is an amenable number.

222001220002201 is a deficient number, since it is larger than the sum of its proper divisors (1).

222001220002201 is an equidigital number, since it uses as much as digits as its factorization.

222001220002201 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 222001220002201 its reverse (102200022100222), we get a palindrome (324201242102423).

The spelling of 222001220002201 in words is "two hundred twenty-two trillion, one billion, two hundred twenty million, two thousand, two hundred one".