200122122201977 has 2 divisors, whose sum is σ = 200122122201978. Its totient is φ = 200122122201976.

The previous prime is 200122122201943. The next prime is 200122122202027. The reversal of 200122122201977 is 779102221221002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199587499471936 + 534622730041 = 14127544^2 + 731179^2 .

It is a cyclic number.

It is not a de Polignac number, because 200122122201977 - 2²⁶ = 200122055093113 is a prime.

It is a super-2 number, since 2×200122122201977² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 200122122201977.

It is not a weakly prime, because it can be changed into another prime (200122122201907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100061061100988 + 100061061100989.

It is an arithmetic number, because the mean of its divisors is an integer number (100061061100989).

Almost surely, 2^{200122122201977} is an apocalyptic number.

It is an amenable number.

200122122201977 is a deficient number, since it is larger than the sum of its proper divisors (1).

200122122201977 is an equidigital number, since it uses as much as digits as its factorization.

200122122201977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 38.

Adding to 200122122201977 its reverse (779102221221002), we get a palindrome (979224343422979).

The spelling of 200122122201977 in words is "two hundred trillion, one hundred twenty-two billion, one hundred twenty-two million, two hundred one thousand, nine hundred seventy-seven".