225122228 has 24 divisors (see below), whose sum is σ = 422174592. Its totient is φ = 104660864.

The previous prime is 225122221. The next prime is 225122231. The reversal of 225122228 is 822221522.

It is a super-4 number, since 4×225122228⁴ (a number of 35 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 225122197 and 225122206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225122221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14300 + ... + 25587.

It is an arithmetic number, because the mean of its divisors is an integer number (17590608).

Almost surely, 2^225122228 is an apocalyptic number.

It is an amenable number.

225122228 is a deficient number, since it is larger than the sum of its proper divisors (197052364).

225122228 is a wasteful number, since it uses less digits than its factorization.

225122228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39991 (or 39989 counting only the distinct ones).

The product of its digits is 2560, while the sum is 26.

The square root of 225122228 is about 15004.0737134953. The cubic root of 225122228 is about 608.3303152328.

The spelling of 225122228 in words is "two hundred twenty-five million, one hundred twenty-two thousand, two hundred twenty-eight".