12111412 has 18 divisors (see below), whose sum is σ = 22517222. Its totient is φ = 5698944.

The previous prime is 12111397. The next prime is 12111419. The reversal of 12111412 is 21411121.

12111412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 6522916 + 5588496 = 2554^2 + 2364^2 .

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 12111392 and 12111401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111419) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4083 + ... + 6394.

Almost surely, 2^12111412 is an apocalyptic number.

It is an amenable number.

12111412 is a deficient number, since it is larger than the sum of its proper divisors (10405810).

12111412 is a wasteful number, since it uses less digits than its factorization.

12111412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10515 (or 10496 counting only the distinct ones).

The product of its digits is 16, while the sum is 13.

The square root of 12111412 is about 3480.1453992614. The cubic root of 12111412 is about 229.6491942568.

Adding to 12111412 its reverse (21411121), we get a palindrome (33522533).

The spelling of 12111412 in words is "twelve million, one hundred eleven thousand, four hundred twelve".