100211202102161 has 2 divisors, whose sum is σ = 100211202102162. Its totient is φ = 100211202102160.

The previous prime is 100211202102083. The next prime is 100211202102211. The reversal of 100211202102161 is 161201202112001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97501701747025 + 2709500355136 = 9874295^2 + 1646056^2 .

It is a cyclic number.

It is not a de Polignac number, because 100211202102161 - 2³⁴ = 100194022232977 is a prime.

It is not a weakly prime, because it can be changed into another prime (100211202102761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50105601051080 + 50105601051081.

It is an arithmetic number, because the mean of its divisors is an integer number (50105601051081).

Almost surely, 2^{100211202102161} is an apocalyptic number.

It is an amenable number.

100211202102161 is a deficient number, since it is larger than the sum of its proper divisors (1).

100211202102161 is an equidigital number, since it uses as much as digits as its factorization.

100211202102161 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 20.

Adding to 100211202102161 its reverse (161201202112001), we get a palindrome (261412404214162).

The spelling of 100211202102161 in words is "one hundred trillion, two hundred eleven billion, two hundred two million, one hundred two thousand, one hundred sixty-one".