2222221112 has 32 divisors (see below), whose sum is σ = 4345461120. Its totient is φ = 1064171520.

The previous prime is 2222221087. The next prime is 2222221121. The reversal of 2222221112 is 2111222222.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22133 + ... + 70244.

It is an arithmetic number, because the mean of its divisors is an integer number (135795660).

Almost surely, 2^2222221112 is an apocalyptic number.

It is an amenable number.

2222221112 is a deficient number, since it is larger than the sum of its proper divisors (2123240008).

2222221112 is a wasteful number, since it uses less digits than its factorization.

2222221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92511 (or 92507 counting only the distinct ones).

The product of its digits is 128, while the sum is 17.

The square root of 2222221112 is about 47140.4403034168. The cubic root of 2222221112 is about 1304.9556630709.

Adding to 2222221112 its reverse (2111222222), we get a palindrome (4333443334).

It can be divided in two parts, 22222 and 21112, that added together give a palindrome (43334).

The spelling of 2222221112 in words is "two billion, two hundred twenty-two million, two hundred twenty-one thousand, one hundred twelve".