100202202161 has 2 divisors, whose sum is σ = 100202202162. Its totient is φ = 100202202160.

The previous prime is 100202202157. The next prime is 100202202169. The reversal of 100202202161 is 161202202001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98034741025 + 2167461136 = 313105^2 + 46556^2 .

It is an emirp because it is prime and its reverse (161202202001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100202202161 - 2² = 100202202157 is a prime.

It is not a weakly prime, because it can be changed into another prime (100202202169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50101101080 + 50101101081.

It is an arithmetic number, because the mean of its divisors is an integer number (50101101081).

Almost surely, 2^100202202161 is an apocalyptic number.

It is an amenable number.

100202202161 is a deficient number, since it is larger than the sum of its proper divisors (1).

100202202161 is an equidigital number, since it uses as much as digits as its factorization.

100202202161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 100202202161 its reverse (161202202001), we get a palindrome (261404404162).

The spelling of 100202202161 in words is "one hundred billion, two hundred two million, two hundred two thousand, one hundred sixty-one".