211200205 has 4 divisors (see below), whose sum is σ = 253440252. Its totient is φ = 168960160.

The previous prime is 211200173. The next prime is 211200211. The reversal of 211200205 is 502002112.

211200205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 163507369 + 47692836 = 12787^2 + 6906^2 .

It is not a de Polignac number, because 211200205 - 2⁵ = 211200173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21120016 + ... + 21120025.

It is an arithmetic number, because the mean of its divisors is an integer number (63360063).

Almost surely, 2^211200205 is an apocalyptic number.

It is an amenable number.

211200205 is a deficient number, since it is larger than the sum of its proper divisors (42240047).

211200205 is an equidigital number, since it uses as much as digits as its factorization.

211200205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42240046.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 211200205 is about 14532.7287527154. The cubic root of 211200205 is about 595.5224138615.

Adding to 211200205 its reverse (502002112), we get a palindrome (713202317).

The spelling of 211200205 in words is "two hundred eleven million, two hundred thousand, two hundred five".