2220313221 has 64 divisors (see below), whose sum is σ = 3866688000. Its totient is φ = 1232755200.

The previous prime is 2220313181. The next prime is 2220313223. The reversal of 2220313221 is 1223130222.

It is not a de Polignac number, because 2220313221 - 2¹⁸ = 2220051077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2220313194 and 2220313203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220313223) 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 63 ways as a sum of consecutive naturals, for example, 2703991 + ... + 2704811.

It is an arithmetic number, because the mean of its divisors is an integer number (60417000).

Almost surely, 2^2220313221 is an apocalyptic number.

2220313221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2220313221 is a deficient number, since it is larger than the sum of its proper divisors (1646374779).

2220313221 is a wasteful number, since it uses less digits than its factorization.

2220313221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227 (or 1221 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2220313221 is about 47120.1997130742. The cubic root of 2220313221 is about 1304.5820989812.

Adding to 2220313221 its reverse (1223130222), we get a palindrome (3443443443).

The spelling of 2220313221 in words is "two billion, two hundred twenty million, three hundred thirteen thousand, two hundred twenty-one".