211121212212089 has 2 divisors, whose sum is σ = 211121212212090. Its totient is φ = 211121212212088.

The previous prime is 211121212212083. The next prime is 211121212212139. The reversal of 211121212212089 is 980212212121112.

211121212212089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107228448083689 + 103892764128400 = 10355117^2 + 10192780^2 .

It is a cyclic number.

It is not a de Polignac number, because 211121212212089 - 2⁴⁰ = 210021700584313 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (211121212212083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105560606106044 + 105560606106045.

It is an arithmetic number, because the mean of its divisors is an integer number (105560606106045).

Almost surely, 2^{211121212212089} is an apocalyptic number.

It is an amenable number.

211121212212089 is a deficient number, since it is larger than the sum of its proper divisors (1).

211121212212089 is an equidigital number, since it uses as much as digits as its factorization.

211121212212089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 35.

The spelling of 211121212212089 in words is "two hundred eleven trillion, one hundred twenty-one billion, two hundred twelve million, two hundred twelve thousand, eighty-nine".