12061030217 has 4 divisors (see below), whose sum is σ = 12061254036. Its totient is φ = 12060806400.

The previous prime is 12061030213. The next prime is 12061030231. The reversal of 12061030217 is 71203016021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71203016021 = 19 ⋅3747527159.

It can be written as a sum of positive squares in 2 ways, for example, as 4570300816 + 7490729401 = 67604^2 + 86549^2 .

It is a cyclic number.

It is not a de Polignac number, because 12061030217 - 2² = 12061030213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12061030192 and 12061030201.

It is not an unprimeable number, because it can be changed into a prime (12061030213) 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 in 3 ways as a sum of consecutive naturals, for example, 23693 + ... + 157109.

It is an arithmetic number, because the mean of its divisors is an integer number (3015313509).

Almost surely, 2^12061030217 is an apocalyptic number.

It is an amenable number.

12061030217 is a deficient number, since it is larger than the sum of its proper divisors (223819).

12061030217 is an equidigital number, since it uses as much as digits as its factorization.

12061030217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223818.

The product of its (nonzero) digits is 504, while the sum is 23.

Adding to 12061030217 its reverse (71203016021), we get a palindrome (83264046238).

The spelling of 12061030217 in words is "twelve billion, sixty-one million, thirty thousand, two hundred seventeen".