12024121 has 4 divisors (see below), whose sum is σ = 12031092. Its totient is φ = 12017152.

The previous prime is 12024119. The next prime is 12024139. The reversal of 12024121 is 12142021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 12142021 = 701 ⋅17321.

It can be written as a sum of positive squares in 2 ways, for example, as 8620096 + 3404025 = 2936^2 + 1845^2 .

It is a cyclic number.

It is not a de Polignac number, because 12024121 - 2¹ = 12024119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12024161) 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, 1221 + ... + 5053.

It is an arithmetic number, because the mean of its divisors is an integer number (3007773).

Almost surely, 2^12024121 is an apocalyptic number.

It is an amenable number.

12024121 is a deficient number, since it is larger than the sum of its proper divisors (6971).

12024121 is an equidigital number, since it uses as much as digits as its factorization.

12024121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6970.

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

The square root of 12024121 is about 3467.5814337950. The cubic root of 12024121 is about 229.0961439123.

Adding to 12024121 its reverse (12142021), we get a palindrome (24166142).

The spelling of 12024121 in words is "twelve million, twenty-four thousand, one hundred twenty-one".