12402112 has 28 divisors (see below), whose sum is σ = 26060400. Its totient is φ = 5835776.

The previous prime is 12402097. The next prime is 12402113. The reversal of 12402112 is 21120421.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12402092 and 12402101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12402113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4612 + ... + 6787.

Almost surely, 2^12402112 is an apocalyptic number.

It is an amenable number.

12402112 is an abundant number, since it is smaller than the sum of its proper divisors (13658288).

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

12402112 is a wasteful number, since it uses less digits than its factorization.

12402112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11428 (or 11418 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 12402112 is about 3521.6632434121. The cubic root of 12402112 is about 231.4720455993.

Adding to 12402112 its reverse (21120421), we get a palindrome (33522533).

The spelling of 12402112 in words is "twelve million, four hundred two thousand, one hundred twelve".