12204281 has 2 divisors, whose sum is σ = 12204282. Its totient is φ = 12204280.

The previous prime is 12204271. The next prime is 12204323. The reversal of 12204281 is 18240221.

It is a happy number.

12204281 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10725625 + 1478656 = 3275^2 + 1216^2 .

It is an emirp because it is prime and its reverse (18240221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12204281 - 2²² = 8009977 is a prime.

It is a super-2 number, since 2×12204281² = 297888949453922, which contains 22 as substring.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (12204211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6102140 + 6102141.

It is an arithmetic number, because the mean of its divisors is an integer number (6102141).

Almost surely, 2^12204281 is an apocalyptic number.

It is an amenable number.

12204281 is a deficient number, since it is larger than the sum of its proper divisors (1).

12204281 is an equidigital number, since it uses as much as digits as its factorization.

12204281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 12204281 is about 3493.4626089311. The cubic root of 12204281 is about 230.2346754065.

The spelling of 12204281 in words is "twelve million, two hundred four thousand, two hundred eighty-one".