225122105 has 16 divisors (see below), whose sum is σ = 293228544. Its totient is φ = 164928960.

The previous prime is 225122087. The next prime is 225122119. The reversal of 225122105 is 501221522.

It is a happy number.

It is not a de Polignac number, because 225122105 - 2⁸ = 225121849 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5381 + ... + 21890.

It is an arithmetic number, because the mean of its divisors is an integer number (18326784).

Almost surely, 2^225122105 is an apocalyptic number.

It is an amenable number.

225122105 is a deficient number, since it is larger than the sum of its proper divisors (68106439).

225122105 is a wasteful number, since it uses less digits than its factorization.

225122105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27416.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 225122105 is about 15004.0696146079. The cubic root of 225122105 is about 608.3302044417.

Adding to 225122105 its reverse (501221522), we get a palindrome (726343627).

The spelling of 225122105 in words is "two hundred twenty-five million, one hundred twenty-two thousand, one hundred five".