210011012209 has 2 divisors, whose sum is σ = 210011012210. Its totient is φ = 210011012208.

The previous prime is 210011012207. The next prime is 210011012231. The reversal of 210011012209 is 902210110012.

It is a happy number.

210011012209 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., 187644912400 + 22366099809 = 433180^2 + 149553^2 .

It is a cyclic number.

It is not a de Polignac number, because 210011012209 - 2¹ = 210011012207 is a prime.

Together with 210011012207, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (210011012207) 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, 105005506104 + 105005506105.

It is an arithmetic number, because the mean of its divisors is an integer number (105005506105).

Almost surely, 2^210011012209 is an apocalyptic number.

It is an amenable number.

210011012209 is a deficient number, since it is larger than the sum of its proper divisors (1).

210011012209 is an equidigital number, since it uses as much as digits as its factorization.

210011012209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 210011012209 in words is "two hundred ten billion, eleven million, twelve thousand, two hundred nine".