230221225 has 24 divisors (see below), whose sum is σ = 325526040. Its totient is φ = 160005120.

The previous prime is 230221223. The next prime is 230221231. The reversal of 230221225 is 522122032.

It can be written as a sum of positive squares in 12 ways, for example, as 112975641 + 117245584 = 10629^2 + 10828^2 .

It is not a de Polignac number, because 230221225 - 2¹ = 230221223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (230221223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15310 + ... + 26359.

It is an arithmetic number, because the mean of its divisors is an integer number (13563585).

Almost surely, 2^230221225 is an apocalyptic number.

230221225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

230221225 is a deficient number, since it is larger than the sum of its proper divisors (95304815).

230221225 is a wasteful number, since it uses less digits than its factorization.

230221225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41709 (or 41704 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 230221225 is about 15173.0427073807. The cubic root of 230221225 is about 612.8889435797. Note that the first 3 decimals are identical.

Adding to 230221225 its reverse (522122032), we get a palindrome (752343257).

The spelling of 230221225 in words is "two hundred thirty million, two hundred twenty-one thousand, two hundred twenty-five".