221044232 has 8 divisors (see below), whose sum is σ = 414457950. Its totient is φ = 110522112.

The previous prime is 221044223. The next prime is 221044289. The reversal of 221044232 is 232440122.

221044232 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 162460516 + 58583716 = 12746^2 + 7654^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13815257 + ... + 13815272.

Almost surely, 2^221044232 is an apocalyptic number.

It is an amenable number.

221044232 is a deficient number, since it is larger than the sum of its proper divisors (193413718).

221044232 is a wasteful number, since it uses less digits than its factorization.

221044232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27630535 (or 27630531 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 221044232 is about 14867.5563560391. The cubic root of 221044232 is about 604.6346923822.

Adding to 221044232 its reverse (232440122), we get a palindrome (453484354).

The spelling of 221044232 in words is "two hundred twenty-one million, forty-four thousand, two hundred thirty-two".