12112040 has 16 divisors (see below), whose sum is σ = 27252180. Its totient is φ = 4844800.

The previous prime is 12112031. The next prime is 12112049. The reversal of 12112040 is 4021121.

It is an interprime number because it is at equal distance from previous prime (12112031) and next prime (12112049).

It can be written as a sum of positive squares in 2 ways, for example, as 11710084 + 401956 = 3422^2 + 634^2 .

It is not an unprimeable number, because it can be changed into a prime (12112049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151361 + ... + 151440.

Almost surely, 2^12112040 is an apocalyptic number.

12112040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12112040 is an abundant number, since it is smaller than the sum of its proper divisors (15140140).

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

12112040 is a wasteful number, since it uses less digits than its factorization.

12112040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302812 (or 302808 counting only the distinct ones).

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

The square root of 12112040 is about 3480.2356242071. The cubic root of 12112040 is about 229.6531634389.

Adding to 12112040 its reverse (4021121), we get a palindrome (16133161).

The spelling of 12112040 in words is "twelve million, one hundred twelve thousand, forty".