2222112220 has 24 divisors (see below), whose sum is σ = 4678206624. Its totient is φ = 886602816.

The previous prime is 2222112199. The next prime is 2222112229. The reversal of 2222112220 is 222112222.

It is a junction number, because it is equal to n+sod(n) for n = 2222112194 and 2222112203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222112229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131992 + ... + 147871.

It is an arithmetic number, because the mean of its divisors is an integer number (194925276).

Almost surely, 2^2222112220 is an apocalyptic number.

2222112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2222112220 is an abundant number, since it is smaller than the sum of its proper divisors (2456094404).

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

2222112220 is a wasteful number, since it uses less digits than its factorization.

2222112220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280269 (or 280267 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2222112220 is about 47139.2853149048. The cubic root of 2222112220 is about 1304.9343478273.

Adding to 2222112220 its reverse (222112222), we get a palindrome (2444224442).

The spelling of 2222112220 in words is "two billion, two hundred twenty-two million, one hundred twelve thousand, two hundred twenty".