211125211 has 8 divisors (see below), whose sum is σ = 240332544. Its totient is φ = 183586920.

The previous prime is 211125203. The next prime is 211125223. The reversal of 211125211 is 112521112.

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

It is not a de Polignac number, because 211125211 - 2³ = 211125203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211125251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416991 + ... + 417496.

It is an arithmetic number, because the mean of its divisors is an integer number (30041568).

Almost surely, 2^211125211 is an apocalyptic number.

211125211 is a deficient number, since it is larger than the sum of its proper divisors (29207333).

211125211 is a wasteful number, since it uses less digits than its factorization.

211125211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834521.

The product of its digits is 40, while the sum is 16.

The square root of 211125211 is about 14530.1483474877. The cubic root of 211125211 is about 595.4519185147.

Adding to 211125211 its reverse (112521112), we get a palindrome (323646323).

The spelling of 211125211 in words is "two hundred eleven million, one hundred twenty-five thousand, two hundred eleven".