2101120501169 has 2 divisors, whose sum is σ = 2101120501170. Its totient is φ = 2101120501168.

The previous prime is 2101120501099. The next prime is 2101120501189. The reversal of 2101120501169 is 9611050211012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1859710418944 + 241410082225 = 1363712^2 + 491335^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2101120501169 is a prime.

It is a super-2 number, since 2×2101120501169² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2101120501189) 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, 1050560250584 + 1050560250585.

It is an arithmetic number, because the mean of its divisors is an integer number (1050560250585).

Almost surely, 2^{2101120501169} is an apocalyptic number.

It is an amenable number.

2101120501169 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101120501169 is an equidigital number, since it uses as much as digits as its factorization.

2101120501169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 29.

The spelling of 2101120501169 in words is "two trillion, one hundred one billion, one hundred twenty million, five hundred one thousand, one hundred sixty-nine".