12400112 has 10 divisors (see below), whose sum is σ = 24025248. Its totient is φ = 6200048.

The previous prime is 12400109. The next prime is 12400127. The reversal of 12400112 is 21100421.

It is a super-2 number, since 2×12400112² = 307525555225088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12400093 and 12400102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387488 + ... + 387519.

Almost surely, 2^12400112 is an apocalyptic number.

It is an amenable number.

12400112 is a deficient number, since it is larger than the sum of its proper divisors (11625136).

12400112 is an equidigital number, since it uses as much as digits as its factorization.

12400112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775015 (or 775009 counting only the distinct ones).

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

The square root of 12400112 is about 3521.3792752273. The cubic root of 12400112 is about 231.4596023160.

Adding to 12400112 its reverse (21100421), we get a palindrome (33500533).

The spelling of 12400112 in words is "twelve million, four hundred thousand, one hundred twelve".