221041330 has 16 divisors (see below), whose sum is σ = 408628440. Its totient is φ = 86026752.

The previous prime is 221041321. The next prime is 221041357. The reversal of 221041330 is 33140122.

It is a happy number.

221041330 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 147064129 + 73977201 = 12127^2 + 8601^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298335 + ... + 299074.

Almost surely, 2^221041330 is an apocalyptic number.

221041330 is a deficient number, since it is larger than the sum of its proper divisors (187587110).

221041330 is a wasteful number, since it uses less digits than its factorization.

221041330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597453.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 221041330 is about 14867.4587606625. The cubic root of 221041330 is about 604.6320463695.

Adding to 221041330 its reverse (33140122), we get a palindrome (254181452).

The spelling of 221041330 in words is "two hundred twenty-one million, forty-one thousand, three hundred thirty".