221040230 has 32 divisors (see below), whose sum is σ = 413918208. Its totient is φ = 84895200.

The previous prime is 221040229. The next prime is 221040241. The reversal of 221040230 is 32040122.

It is a congruent 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, 37889 + ... + 43331.

It is an arithmetic number, because the mean of its divisors is an integer number (12934944).

Almost surely, 2^221040230 is an apocalyptic number.

221040230 is a deficient number, since it is larger than the sum of its proper divisors (192877978).

221040230 is a wasteful number, since it uses less digits than its factorization.

221040230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5612.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 221040230 is about 14867.4217670718. The cubic root of 221040230 is about 604.6310433952.

Adding to 221040230 its reverse (32040122), we get a palindrome (253080352).

The spelling of 221040230 in words is "two hundred twenty-one million, forty thousand, two hundred thirty".