12212201121017 has 2 divisors, whose sum is σ = 12212201121018. Its totient is φ = 12212201121016.

The previous prime is 12212201120993. The next prime is 12212201121049. The reversal of 12212201121017 is 71012110221221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12186131466496 + 26069654521 = 3490864^2 + 161461^2 .

It is a cyclic number.

It is not a de Polignac number, because 12212201121017 - 2⁶ = 12212201120953 is a prime.

It is a super-2 number, since 2×12212201121017² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12212201120983 and 12212201121001.

It is not a weakly prime, because it can be changed into another prime (12212201120017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106100560508 + 6106100560509.

It is an arithmetic number, because the mean of its divisors is an integer number (6106100560509).

Almost surely, 2^{12212201121017} is an apocalyptic number.

It is an amenable number.

12212201121017 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212201121017 is an equidigital number, since it uses as much as digits as its factorization.

12212201121017 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 23.

Adding to 12212201121017 its reverse (71012110221221), we get a palindrome (83224311342238).

The spelling of 12212201121017 in words is "twelve trillion, two hundred twelve billion, two hundred one million, one hundred twenty-one thousand, seventeen".