202011222110161 has 2 divisors, whose sum is σ = 202011222110162. Its totient is φ = 202011222110160.

The previous prime is 202011222110153. The next prime is 202011222110207. The reversal of 202011222110161 is 161011222110202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 185329560416400 + 16681661693761 = 13613580^2 + 4084319^2 .

It is a cyclic number.

It is not a de Polignac number, because 202011222110161 - 2³ = 202011222110153 is a prime.

It is not a weakly prime, because it can be changed into another prime (202011222110461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101005611055080 + 101005611055081.

It is an arithmetic number, because the mean of its divisors is an integer number (101005611055081).

Almost surely, 2^{202011222110161} is an apocalyptic number.

It is an amenable number.

202011222110161 is a deficient number, since it is larger than the sum of its proper divisors (1).

202011222110161 is an equidigital number, since it uses as much as digits as its factorization.

202011222110161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 22.

Adding to 202011222110161 its reverse (161011222110202), we get a palindrome (363022444220363).

The spelling of 202011222110161 in words is "two hundred two trillion, eleven billion, two hundred twenty-two million, one hundred ten thousand, one hundred sixty-one".