220160321 has 4 divisors (see below), whose sum is σ = 220868544. Its totient is φ = 219452100.

The previous prime is 220160309. The next prime is 220160333. The reversal of 220160321 is 123061022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (220160309) and next prime (220160333).

It is a cyclic number.

It is not a de Polignac number, because 220160321 - 2²² = 215966017 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 220160321.

It is not an unprimeable number, because it can be changed into a prime (220160341) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 353645 + ... + 354266.

It is an arithmetic number, because the mean of its divisors is an integer number (55217136).

Almost surely, 2^220160321 is an apocalyptic number.

It is an amenable number.

220160321 is a deficient number, since it is larger than the sum of its proper divisors (708223).

220160321 is an equidigital number, since it uses as much as digits as its factorization.

220160321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708222.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 220160321 is about 14837.8004097642. The cubic root of 220160321 is about 603.8276786091.

The spelling of 220160321 in words is "two hundred twenty million, one hundred sixty thousand, three hundred twenty-one".