12241582481 has 2 divisors, whose sum is σ = 12241582482. Its totient is φ = 12241582480.

The previous prime is 12241582477. The next prime is 12241582501. The reversal of 12241582481 is 18428514221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11985870400 + 255712081 = 109480^2 + 15991^2 .

It is a cyclic number.

It is not a de Polignac number, because 12241582481 - 2² = 12241582477 is a prime.

It is a super-2 number, since 2×12241582481² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12241582781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6120791240 + 6120791241.

It is an arithmetic number, because the mean of its divisors is an integer number (6120791241).

Almost surely, 2^12241582481 is an apocalyptic number.

It is an amenable number.

12241582481 is a deficient number, since it is larger than the sum of its proper divisors (1).

12241582481 is an equidigital number, since it uses as much as digits as its factorization.

12241582481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40960, while the sum is 38.

The spelling of 12241582481 in words is "twelve billion, two hundred forty-one million, five hundred eighty-two thousand, four hundred eighty-one".