12072241 has 2 divisors, whose sum is σ = 12072242. Its totient is φ = 12072240.

The previous prime is 12072211. The next prime is 12072251. The reversal of 12072241 is 14227021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9734400 + 2337841 = 3120^2 + 1529^2 .

It is an emirp because it is prime and its reverse (14227021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12072241 - 2⁵ = 12072209 is a prime.

It is a super-3 number, since 3×12072241³ (a number of 22 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (12072211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6036120 + 6036121.

It is an arithmetic number, because the mean of its divisors is an integer number (6036121).

Almost surely, 2^12072241 is an apocalyptic number.

It is an amenable number.

12072241 is a deficient number, since it is larger than the sum of its proper divisors (1).

12072241 is an equidigital number, since it uses as much as digits as its factorization.

12072241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 12072241 is about 3474.5130594085. The cubic root of 12072241 is about 229.4013480116.

Adding to 12072241 its reverse (14227021), we get a palindrome (26299262).

It can be divided in two parts, 120 and 72241, that added together give a square (72361 = 269²).

The spelling of 12072241 in words is "twelve million, seventy-two thousand, two hundred forty-one".