225130211 has 4 divisors (see below), whose sum is σ = 225198792. Its totient is φ = 225061632.

The previous prime is 225130207. The next prime is 225130223. The reversal of 225130211 is 112031522.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112031522 = 2 ⋅56015761.

It is a cyclic number.

It is not a de Polignac number, because 225130211 - 2² = 225130207 is a prime.

It is a super-2 number, since 2×225130211² = 101367223809809042, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225130211.

It is not an unprimeable number, because it can be changed into a prime (225130231) 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 3 ways as a sum of consecutive naturals, for example, 29105 + ... + 36018.

It is an arithmetic number, because the mean of its divisors is an integer number (56299698).

Almost surely, 2^225130211 is an apocalyptic number.

225130211 is a deficient number, since it is larger than the sum of its proper divisors (68581).

225130211 is an equidigital number, since it uses as much as digits as its factorization.

225130211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68580.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 225130211 is about 15004.3397388889. The cubic root of 225130211 is about 608.3375057615.

Adding to 225130211 its reverse (112031522), we get a palindrome (337161733).

The spelling of 225130211 in words is "two hundred twenty-five million, one hundred thirty thousand, two hundred eleven".