221330299 has 8 divisors (see below), whose sum is σ = 225573120. Its totient is φ = 217103976.

The previous prime is 221330287. The next prime is 221330309. The reversal of 221330299 is 992033122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221330299 - 2⁵ = 221330267 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221330299.

It is not an unprimeable number, because it can be changed into a prime (221330269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24882 + ... + 32584.

It is an arithmetic number, because the mean of its divisors is an integer number (28196640).

Almost surely, 2^221330299 is an apocalyptic number.

221330299 is a deficient number, since it is larger than the sum of its proper divisors (4242821).

221330299 is an equidigital number, since it uses as much as digits as its factorization.

221330299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8249.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 221330299 is about 14877.1737571355. The cubic root of 221330299 is about 604.8954116498.

The spelling of 221330299 in words is "two hundred twenty-one million, three hundred thirty thousand, two hundred ninety-nine".