211001000211 has 12 divisors (see below), whose sum is σ = 315288851280. Its totient is φ = 135816735600.

The previous prime is 211001000209. The next prime is 211001000239. The reversal of 211001000211 is 112000100112.

It is a happy number.

It is not a de Polignac number, because 211001000211 - 2¹ = 211001000209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 211001000193 and 211001000202.

It is not an unprimeable number, because it can be changed into a prime (211001000281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 404216215 + ... + 404216736.

It is an arithmetic number, because the mean of its divisors is an integer number (26274070940).

Almost surely, 2^211001000211 is an apocalyptic number.

211001000211 is a deficient number, since it is larger than the sum of its proper divisors (104287851069).

211001000211 is a wasteful number, since it uses less digits than its factorization.

211001000211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808432986 (or 808432983 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 211001000211 its reverse (112000100112), we get a palindrome (323001100323).

Subtracting from 211001000211 its reverse (112000100112), we obtain a palindrome (99000900099).

The spelling of 211001000211 in words is "two hundred eleven billion, one million, two hundred eleven", and thus it is an aban number.