211110212209 has 16 divisors (see below), whose sum is σ = 241213351680. Its totient is φ = 183034333440.

The previous prime is 211110212161. The next prime is 211110212213. The reversal of 211110212209 is 902212011112.

It is a cyclic number.

It is not a de Polignac number, because 211110212209 - 2¹¹ = 211110210161 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211110212209.

It is not an unprimeable number, because it can be changed into a prime (211110272209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 864249 + ... + 1081270.

It is an arithmetic number, because the mean of its divisors is an integer number (15075834480).

Almost surely, 2^211110212209 is an apocalyptic number.

It is an amenable number.

211110212209 is a deficient number, since it is larger than the sum of its proper divisors (30103139471).

211110212209 is a wasteful number, since it uses less digits than its factorization.

211110212209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1946040.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 211110212209 in words is "two hundred eleven billion, one hundred ten million, two hundred twelve thousand, two hundred nine".