211022111209 has 8 divisors (see below), whose sum is σ = 259719521600. Its totient is φ = 166962549456.

The previous prime is 211022111189. The next prime is 211022111219. The reversal of 211022111209 is 902111220112.

211022111209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211022111209 - 2¹⁷ = 211021980137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211022111209.

It is not an unprimeable number, because it can be changed into a prime (211022111219) 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 in 7 ways as a sum of consecutive naturals, for example, 1159462059 + ... + 1159462240.

It is an arithmetic number, because the mean of its divisors is an integer number (32464940200).

Almost surely, 2^211022111209 is an apocalyptic number.

It is an amenable number.

211022111209 is a deficient number, since it is larger than the sum of its proper divisors (48697410391).

211022111209 is a wasteful number, since it uses less digits than its factorization.

211022111209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2318924319.

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

The spelling of 211022111209 in words is "two hundred eleven billion, twenty-two million, one hundred eleven thousand, two hundred nine".