2222320144 has 40 divisors (see below), whose sum is σ = 4721840640. Its totient is φ = 1004841600.

The previous prime is 2222320127. The next prime is 2222320201. The reversal of 2222320144 is 4410232222.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 562 + ... + 66670.

It is an arithmetic number, because the mean of its divisors is an integer number (118046016).

Almost surely, 2^2222320144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2222320144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2360920320).

2222320144 is an abundant number, since it is smaller than the sum of its proper divisors (2499520496).

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

2222320144 is a wasteful number, since it uses less digits than its factorization.

2222320144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66319 (or 66313 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2222320144 is about 47141.4906849582. The cubic root of 2222320144 is about 1304.9750476480.

Adding to 2222320144 its reverse (4410232222), we get a palindrome (6632552366).

The spelling of 2222320144 in words is "two billion, two hundred twenty-two million, three hundred twenty thousand, one hundred forty-four".