225330211 has 4 divisors (see below), whose sum is σ = 225789624. Its totient is φ = 224870800.

The previous prime is 225330151. The next prime is 225330233. The reversal of 225330211 is 112033522.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225330211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225330311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228970 + ... + 229951.

It is an arithmetic number, because the mean of its divisors is an integer number (56447406).

Almost surely, 2^225330211 is an apocalyptic number.

225330211 is a deficient number, since it is larger than the sum of its proper divisors (459413).

225330211 is an equidigital number, since it uses as much as digits as its factorization.

225330211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459412.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 225330211 is about 15011.0029978013. The cubic root of 225330211 is about 608.5175963405.

Adding to 225330211 its reverse (112033522), we get a palindrome (337363733).

The spelling of 225330211 in words is "two hundred twenty-five million, three hundred thirty thousand, two hundred eleven".