2222222221320 has 128 divisors (see below), whose sum is σ = 7018065331200. Its totient is φ = 561361791744.

The previous prime is 2222222221319. The next prime is 2222222221343. The reversal of 2222222221320 is 231222222222.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40700359 + ... + 40754921.

It is an arithmetic number, because the mean of its divisors is an integer number (54828635400).

Almost surely, 2^{2222222221320} is an apocalyptic number.

2222222221320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2222222221320 is an abundant number, since it is smaller than the sum of its proper divisors (4795843109880).

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

2222222221320 is a wasteful number, since it uses less digits than its factorization.

2222222221320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72459 (or 72455 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 2222222221320 its reverse (231222222222), we get a palindrome (2453444443542).

The spelling of 2222222221320 in words is "two trillion, two hundred twenty-two billion, two hundred twenty-two million, two hundred twenty-one thousand, three hundred twenty".