221030044 has 12 divisors (see below), whose sum is σ = 387431800. Its totient is φ = 110335248.

The previous prime is 221030009. The next prime is 221030053. The reversal of 221030044 is 440030122.

221030044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42159 + ... + 47110.

Almost surely, 2^221030044 is an apocalyptic number.

It is an amenable number.

221030044 is a deficient number, since it is larger than the sum of its proper divisors (166401756).

221030044 is a wasteful number, since it uses less digits than its factorization.

221030044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89892 (or 89890 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 221030044 is about 14867.0792020491. The cubic root of 221030044 is about 604.6217556946.

Adding to 221030044 its reverse (440030122), we get a palindrome (661060166).

The spelling of 221030044 in words is "two hundred twenty-one million, thirty thousand, forty-four".