211089213 has 16 divisors (see below), whose sum is σ = 313803840. Its totient is φ = 140240592.

The previous prime is 211089191. The next prime is 211089251. The reversal of 211089213 is 312980112.

It is not a de Polignac number, because 211089213 - 2⁸ = 211088957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211089283) 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, 5431 + ... + 21252.

It is an arithmetic number, because the mean of its divisors is an integer number (19612740).

Almost surely, 2^211089213 is an apocalyptic number.

It is an amenable number.

211089213 is a deficient number, since it is larger than the sum of its proper divisors (102714627).

211089213 is a wasteful number, since it uses less digits than its factorization.

211089213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26985 (or 26979 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 211089213 is about 14528.9095599085. The cubic root of 211089213 is about 595.4180739912.

The spelling of 211089213 in words is "two hundred eleven million, eighty-nine thousand, two hundred thirteen".