2222320320 has 448 divisors, whose sum is σ = 8705088000. Its totient is φ = 529182720.

The previous prime is 2222320297. The next prime is 2222320333. The reversal of 2222320320 is 230232222.

2222320320 is a `hidden beast` number, since 2 + 2 + 22 + 320 + 320 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2222320293 and 2222320302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6367506 + ... + 6367854.

It is an arithmetic number, because the mean of its divisors is an integer number (19431000).

Almost surely, 2^2222320320 is an apocalyptic number.

2222320320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2222320320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4352544000).

2222320320 is an abundant number, since it is smaller than the sum of its proper divisors (6482767680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2222320320 is a wasteful number, since it uses less digits than its factorization.

2222320320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453 (or 437 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 2222320320 is about 47141.4925516789. The cubic root of 2222320320 is about 1304.9750820979.

Adding to 2222320320 its reverse (230232222), we get a palindrome (2452552542).

The spelling of 2222320320 in words is "two billion, two hundred twenty-two million, three hundred twenty thousand, three hundred twenty".