2222002120 has 128 divisors (see below), whose sum is σ = 5697216000. Its totient is φ = 773176320.

The previous prime is 2222002117. The next prime is 2222002141. The reversal of 2222002120 is 212002222.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 2222002120.

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 31 ways as a sum of consecutive naturals, for example, 2360850 + ... + 2361790.

It is an arithmetic number, because the mean of its divisors is an integer number (44509500).

Almost surely, 2^2222002120 is an apocalyptic number.

2222002120 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 2222002120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2848608000).

2222002120 is an abundant number, since it is smaller than the sum of its proper divisors (3475213880).

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

2222002120 is a wasteful number, since it uses less digits than its factorization.

2222002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223 (or 1219 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 2222002120 is about 47138.1174846854. The cubic root of 2222002120 is about 1304.9127954137.

Adding to 2222002120 its reverse (212002222), we get a palindrome (2434004342).

The spelling of 2222002120 in words is "two billion, two hundred twenty-two million, two thousand, one hundred twenty".