1112221612 has 12 divisors (see below), whose sum is σ = 1964245360. Its totient is φ = 551008656.

The previous prime is 1112221609. The next prime is 1112221613. The reversal of 1112221612 is 2161222111.

It is a self number, because there is not a number n which added to its sum of digits gives 1112221612.

It is not an unprimeable number, because it can be changed into a prime (1112221613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1275048 + ... + 1275919.

Almost surely, 2^1112221612 is an apocalyptic number.

It is an amenable number.

1112221612 is a deficient number, since it is larger than the sum of its proper divisors (852023748).

1112221612 is a wasteful number, since it uses less digits than its factorization.

1112221612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2551080 (or 2551078 counting only the distinct ones).

The product of its digits is 96, while the sum is 19.

The square root of 1112221612 is about 33349.9866866540. The cubic root of 1112221612 is about 1036.0891122047.

Adding to 1112221612 its reverse (2161222111), we get a palindrome (3273443723).

The spelling of 1112221612 in words is "one billion, one hundred twelve million, two hundred twenty-one thousand, six hundred twelve".