12262281 has 16 divisors (see below), whose sum is σ = 17076288. Its totient is φ = 7819200.

The previous prime is 12262279. The next prime is 12262291. The reversal of 12262281 is 18226221.

It is not a de Polignac number, because 12262281 - 2¹ = 12262279 is a prime.

It is a super-2 number, since 2×12262281² = 300727070645922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12262291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5866 + ... + 7676.

It is an arithmetic number, because the mean of its divisors is an integer number (1067268).

Almost surely, 2^12262281 is an apocalyptic number.

It is an amenable number.

12262281 is a deficient number, since it is larger than the sum of its proper divisors (4814007).

12262281 is a wasteful number, since it uses less digits than its factorization.

12262281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1912.

The product of its digits is 768, while the sum is 24.

The square root of 12262281 is about 3501.7539890746. The cubic root of 12262281 is about 230.5988239326.

The spelling of 12262281 in words is "twelve million, two hundred sixty-two thousand, two hundred eighty-one".