225221103 has 12 divisors (see below), whose sum is σ = 330175768. Its totient is φ = 147906000.

The previous prime is 225221093. The next prime is 225221111. The reversal of 225221103 is 301122522.

It is not a de Polignac number, because 225221103 - 2¹² = 225217007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225221123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 186148 + ... + 187353.

Almost surely, 2^225221103 is an apocalyptic number.

225221103 is a deficient number, since it is larger than the sum of its proper divisors (104954665).

225221103 is a wasteful number, since it uses less digits than its factorization.

225221103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373574 (or 373571 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 225221103 is about 15007.3682902766. The cubic root of 225221103 is about 608.4193629422.

Adding to 225221103 its reverse (301122522), we get a palindrome (526343625).

The spelling of 225221103 in words is "two hundred twenty-five million, two hundred twenty-one thousand, one hundred three".