212101121110897 has 2 divisors, whose sum is σ = 212101121110898. Its totient is φ = 212101121110896.

The previous prime is 212101121110831. The next prime is 212101121111179. The reversal of 212101121110897 is 798011121101212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121849012098576 + 90252109012321 = 11038524^2 + 9500111^2 .

It is a cyclic number.

It is not a de Polignac number, because 212101121110897 - 2³¹ = 212098973627249 is a prime.

It is not a weakly prime, because it can be changed into another prime (212101121110597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106050560555448 + 106050560555449.

It is an arithmetic number, because the mean of its divisors is an integer number (106050560555449).

Almost surely, 2^{212101121110897} is an apocalyptic number.

It is an amenable number.

212101121110897 is a deficient number, since it is larger than the sum of its proper divisors (1).

212101121110897 is an equidigital number, since it uses as much as digits as its factorization.

212101121110897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 37.

The spelling of 212101121110897 in words is "two hundred twelve trillion, one hundred one billion, one hundred twenty-one million, one hundred ten thousand, eight hundred ninety-seven".