205110227 has 10 divisors (see below), whose sum is σ = 239283828. Its totient is φ = 175806708.

The previous prime is 205110223. The next prime is 205110239. The reversal of 205110227 is 722011502.

It is not a de Polignac number, because 205110227 - 2² = 205110223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 205110199 and 205110208.

It is not an unprimeable number, because it can be changed into a prime (205110223) 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 9 ways as a sum of consecutive naturals, for example, 40313 + ... + 45114.

Almost surely, 2^205110227 is an apocalyptic number.

205110227 is a deficient number, since it is larger than the sum of its proper divisors (34173601).

205110227 is an frugal number, since it uses more digits than its factorization.

205110227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85455 (or 85434 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 205110227 is about 14321.6698397917. The cubic root of 205110227 is about 589.7425162020.

Adding to 205110227 its reverse (722011502), we get a palindrome (927121729).

The spelling of 205110227 in words is "two hundred five million, one hundred ten thousand, two hundred twenty-seven".