220122202020997 has 2 divisors, whose sum is σ = 220122202020998. Its totient is φ = 220122202020996.

The previous prime is 220122202020911. The next prime is 220122202021067. The reversal of 220122202020997 is 799020202221022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134210047028836 + 85912154992161 = 11584906^2 + 9268881^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220122202020997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220122202020197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110061101010498 + 110061101010499.

It is an arithmetic number, because the mean of its divisors is an integer number (110061101010499).

Almost surely, 2^{220122202020997} is an apocalyptic number.

It is an amenable number.

220122202020997 is a deficient number, since it is larger than the sum of its proper divisors (1).

220122202020997 is an equidigital number, since it uses as much as digits as its factorization.

220122202020997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 220122202020997 in words is "two hundred twenty trillion, one hundred twenty-two billion, two hundred two million, twenty thousand, nine hundred ninety-seven".