220200122220901 has 2 divisors, whose sum is σ = 220200122220902. Its totient is φ = 220200122220900.

The previous prime is 220200122220899. The next prime is 220200122220907. The reversal of 220200122220901 is 109022221002022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204114768691876 + 16085353529025 = 14286874^2 + 4010655^2 .

It is a cyclic number.

It is not a de Polignac number, because 220200122220901 - 2¹ = 220200122220899 is a prime.

Together with 220200122220899, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220200122220907) 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, 110100061110450 + 110100061110451.

It is an arithmetic number, because the mean of its divisors is an integer number (110100061110451).

Almost surely, 2^{220200122220901} is an apocalyptic number.

It is an amenable number.

220200122220901 is a deficient number, since it is larger than the sum of its proper divisors (1).

220200122220901 is an equidigital number, since it uses as much as digits as its factorization.

220200122220901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 220200122220901 its reverse (109022221002022), we get a palindrome (329222343222923).

The spelling of 220200122220901 in words is "two hundred twenty trillion, two hundred billion, one hundred twenty-two million, two hundred twenty thousand, nine hundred one".