225221363 has 2 divisors, whose sum is σ = 225221364. Its totient is φ = 225221362.

The previous prime is 225221351. The next prime is 225221387. The reversal of 225221363 is 363122522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225221363 - 2²⁰ = 224172787 is a prime.

It is not a weakly prime, because it can be changed into another prime (225221063) 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 as a sum of consecutive naturals, namely, 112610681 + 112610682.

It is an arithmetic number, because the mean of its divisors is an integer number (112610682).

Almost surely, 2^225221363 is an apocalyptic number.

225221363 is a deficient number, since it is larger than the sum of its proper divisors (1).

225221363 is an equidigital number, since it uses as much as digits as its factorization.

225221363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 26.

The square root of 225221363 is about 15007.3769526856. The cubic root of 225221363 is about 608.4195970662.

Adding to 225221363 its reverse (363122522), we get a palindrome (588343885).

The spelling of 225221363 in words is "two hundred twenty-five million, two hundred twenty-one thousand, three hundred sixty-three".