12126112 has 12 divisors (see below), whose sum is σ = 23873346. Its totient is φ = 6063040.

The previous prime is 12126109. The next prime is 12126131. The reversal of 12126112 is 21162121.

It can be written as a sum of positive squares in only one way, i.e., 10265616 + 1860496 = 3204^2 + 1364^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189439 + ... + 189502.

Almost surely, 2^12126112 is an apocalyptic number.

It is an amenable number.

12126112 is a deficient number, since it is larger than the sum of its proper divisors (11747234).

12126112 is an equidigital number, since it uses as much as digits as its factorization.

12126112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378951 (or 378943 counting only the distinct ones).

The product of its digits is 48, while the sum is 16.

The square root of 12126112 is about 3482.2567395297. The cubic root of 12126112 is about 229.7420674986.

Adding to 12126112 its reverse (21162121), we get a palindrome (33288233).

The spelling of 12126112 in words is "twelve million, one hundred twenty-six thousand, one hundred twelve".