12011404101217 has 2 divisors, whose sum is σ = 12011404101218. Its totient is φ = 12011404101216.

The previous prime is 12011404101211. The next prime is 12011404101239. The reversal of 12011404101217 is 71210140411021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10922436717921 + 1088967383296 = 3304911^2 + 1043536^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12011404101217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12011404101191 and 12011404101200.

It is not a weakly prime, because it can be changed into another prime (12011404101211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005702050608 + 6005702050609.

It is an arithmetic number, because the mean of its divisors is an integer number (6005702050609).

Almost surely, 2^{12011404101217} is an apocalyptic number.

It is an amenable number.

12011404101217 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011404101217 is an equidigital number, since it uses as much as digits as its factorization.

12011404101217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 25.

Adding to 12011404101217 its reverse (71210140411021), we get a palindrome (83221544512238).

The spelling of 12011404101217 in words is "twelve trillion, eleven billion, four hundred four million, one hundred one thousand, two hundred seventeen".