1222112 has 24 divisors (see below), whose sum is σ = 2430792. Its totient is φ = 604800.

The previous prime is 1222097. The next prime is 1222129. The reversal of 1222112 is 2112221.

It is a happy number.

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 1222093 and 1222102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5687 + ... + 5897.

It is an arithmetic number, because the mean of its divisors is an integer number (101283).

2^1222112 is an apocalyptic number.

It is an amenable number.

1222112 is a deficient number, since it is larger than the sum of its proper divisors (1208680).

1222112 is a wasteful number, since it uses less digits than its factorization.

1222112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402 (or 394 counting only the distinct ones).

The product of its digits is 16, while the sum is 11.

The square root of 1222112 is about 1105.4917457856. The cubic root of 1222112 is about 106.9145968890.

Adding to 1222112 its reverse (2112221), we get a palindrome (3334333).

The spelling of 1222112 in words is "one million, two hundred twenty-two thousand, one hundred twelve".