2220023321 has 4 divisors (see below), whose sum is σ = 2220124452. Its totient is φ = 2219922192.

The previous prime is 2220023317. The next prime is 2220023339. The reversal of 2220023321 is 1233200222.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1514377225 + 705646096 = 38915^2 + 26564^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220023321 - 2² = 2220023317 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 2220023321.

It is not an unprimeable number, because it can be changed into a prime (2220023371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2246 + ... + 66671.

It is an arithmetic number, because the mean of its divisors is an integer number (555031113).

Almost surely, 2^2220023321 is an apocalyptic number.

It is an amenable number.

2220023321 is a deficient number, since it is larger than the sum of its proper divisors (101131).

2220023321 is an equidigital number, since it uses as much as digits as its factorization.

2220023321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101130.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 2220023321 is about 47117.1234372388. The cubic root of 2220023321 is about 1304.5253179817.

Adding to 2220023321 its reverse (1233200222), we get a palindrome (3453223543).

The spelling of 2220023321 in words is "two billion, two hundred twenty million, twenty-three thousand, three hundred twenty-one".