220330091 has 8 divisors (see below), whose sum is σ = 223676640. Its totient is φ = 217003072.

The previous prime is 220330073. The next prime is 220330157. The reversal of 220330091 is 190033022.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220330091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220330391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18701 + ... + 28113.

It is an arithmetic number, because the mean of its divisors is an integer number (27959580).

Almost surely, 2^220330091 is an apocalyptic number.

220330091 is a deficient number, since it is larger than the sum of its proper divisors (3346549).

220330091 is an equidigital number, since it uses as much as digits as its factorization.

220330091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9765.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 220330091 is about 14843.5201687470. The cubic root of 220330091 is about 603.9828465737.

The spelling of 220330091 in words is "two hundred twenty million, three hundred thirty thousand, ninety-one".