2220222120 has 32 divisors (see below), whose sum is σ = 6660666720. Its totient is φ = 592059200.

The previous prime is 2220222089. The next prime is 2220222127. The reversal of 2220222120 is 212220222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2220222120.

It is not an unprimeable number, because it can be changed into a prime (2220222127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9250806 + ... + 9251045.

It is an arithmetic number, because the mean of its divisors is an integer number (208145835).

Almost surely, 2^2220222120 is an apocalyptic number.

2220222120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220222120 is an abundant number, since it is smaller than the sum of its proper divisors (4440444600).

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

2220222120 is a wasteful number, since it uses less digits than its factorization.

2220222120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18501865 (or 18501861 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 2220222120 is about 47119.2330158291. The cubic root of 2220222120 is about 1304.5642560994.

Adding to 2220222120 its reverse (212220222), we get a palindrome (2432442342).

The spelling of 2220222120 in words is "two billion, two hundred twenty million, two hundred twenty-two thousand, one hundred twenty".