12041121217 has 2 divisors, whose sum is σ = 12041121218. Its totient is φ = 12041121216.

The previous prime is 12041121181. The next prime is 12041121227. The reversal of 12041121217 is 71212114021.

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., 10076947456 + 1964173761 = 100384^2 + 44319^2 .

It is a cyclic number.

It is not a de Polignac number, because 12041121217 - 2⁷ = 12041121089 is a prime.

It is a super-2 number, since 2×12041121217² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12041121227) 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, 6020560608 + 6020560609.

It is an arithmetic number, because the mean of its divisors is an integer number (6020560609).

Almost surely, 2^12041121217 is an apocalyptic number.

It is an amenable number.

12041121217 is a deficient number, since it is larger than the sum of its proper divisors (1).

12041121217 is an equidigital number, since it uses as much as digits as its factorization.

12041121217 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 22.

Adding to 12041121217 its reverse (71212114021), we get a palindrome (83253235238).

The spelling of 12041121217 in words is "twelve billion, forty-one million, one hundred twenty-one thousand, two hundred seventeen".