220320002221 has 16 divisors (see below), whose sum is σ = 240718204800. Its totient is φ = 199983571200.

The previous prime is 220320002207. The next prime is 220320002237. The reversal of 220320002221 is 122200023022.

It is a cyclic number.

It is not a de Polignac number, because 220320002221 - 2²¹ = 220317905069 is a prime.

It is a super-2 number, since 2×220320002221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220320002195 and 220320002204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220320002251) 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 15 ways as a sum of consecutive naturals, for example, 22734345 + ... + 22744033.

It is an arithmetic number, because the mean of its divisors is an integer number (15044887800).

Almost surely, 2^220320002221 is an apocalyptic number.

It is an amenable number.

220320002221 is a deficient number, since it is larger than the sum of its proper divisors (20398202579).

220320002221 is a wasteful number, since it uses less digits than its factorization.

220320002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12660.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 220320002221 its reverse (122200023022), we get a palindrome (342520025243).

The spelling of 220320002221 in words is "two hundred twenty billion, three hundred twenty million, two thousand, two hundred twenty-one".