1200112 has 20 divisors (see below), whose sum is σ = 2350296. Its totient is φ = 593600.

The previous prime is 1200109. The next prime is 1200139. The reversal of 1200112 is 2110021.

It is a junction number, because it is equal to n+sod(n) for n = 1200095 and 1200104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1362 + ... + 2062.

2^1200112 is an apocalyptic number.

It is an amenable number.

1200112 is a deficient number, since it is larger than the sum of its proper divisors (1150184).

1200112 is a wasteful number, since it uses less digits than its factorization.

1200112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816 (or 810 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 1200112 is about 1095.4962345896. The cubic root of 1200112 is about 106.2691628643.

Adding to 1200112 its reverse (2110021), we get a palindrome (3310133).

Subtracting 1200112 from its reverse (2110021), we obtain a palindrome (909909).

The spelling of 1200112 in words is "one million, two hundred thousand, one hundred twelve".