220343321 has 8 divisors (see below), whose sum is σ = 240499584. Its totient is φ = 200207920.

The previous prime is 220343311. The next prime is 220343329. The reversal of 220343321 is 123343022.

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

It is not a de Polignac number, because 220343321 - 2¹⁸ = 220081177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 220343293 and 220343302.

It is not an unprimeable number, because it can be changed into a prime (220343329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24035 + ... + 31911.

It is an arithmetic number, because the mean of its divisors is an integer number (30062448).

Almost surely, 2^220343321 is an apocalyptic number.

It is an amenable number.

220343321 is a deficient number, since it is larger than the sum of its proper divisors (20156263).

220343321 is a wasteful number, since it uses less digits than its factorization.

220343321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10431.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 220343321 is about 14843.9658110628. The cubic root of 220343321 is about 603.9949353039.

Adding to 220343321 its reverse (123343022), we get a palindrome (343686343).

The spelling of 220343321 in words is "two hundred twenty million, three hundred forty-three thousand, three hundred twenty-one".