12012112 has 20 divisors (see below), whose sum is σ = 26598496. Its totient is φ = 5148000.

The previous prime is 12012109. The next prime is 12012113. The reversal of 12012112 is 21121021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012113) by changing a digit.

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, 53514 + ... + 53737.

Almost surely, 2^12012112 is an apocalyptic number.

It is an amenable number.

12012112 is an abundant number, since it is smaller than the sum of its proper divisors (14586384).

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

12012112 is a wasteful number, since it uses less digits than its factorization.

12012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107266 (or 107260 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 12012112 is about 3465.8493908420. The cubic root of 12012112 is about 229.0198491595.

Adding to 12012112 its reverse (21121021), we get a palindrome (33133133).

The spelling of 12012112 in words is "twelve million, twelve thousand, one hundred twelve".