200202220121161 has 2 divisors, whose sum is σ = 200202220121162. Its totient is φ = 200202220121160.

The previous prime is 200202220121063. The next prime is 200202220121201. The reversal of 200202220121161 is 161121022202002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198369055766025 + 1833164355136 = 14084355^2 + 1353944^2 .

It is a cyclic number.

It is not a de Polignac number, because 200202220121161 - 2¹⁷ = 200202219990089 is a prime.

It is not a weakly prime, because it can be changed into another prime (200202220128161) 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, 100101110060580 + 100101110060581.

It is an arithmetic number, because the mean of its divisors is an integer number (100101110060581).

Almost surely, 2^{200202220121161} is an apocalyptic number.

It is an amenable number.

200202220121161 is a deficient number, since it is larger than the sum of its proper divisors (1).

200202220121161 is an equidigital number, since it uses as much as digits as its factorization.

200202220121161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 200202220121161 its reverse (161121022202002), we get a palindrome (361323242323163).

The spelling of 200202220121161 in words is "two hundred trillion, two hundred two billion, two hundred twenty million, one hundred twenty-one thousand, one hundred sixty-one".