12011220163 has 2 divisors, whose sum is σ = 12011220164. Its totient is φ = 12011220162.

The previous prime is 12011220161. The next prime is 12011220167. The reversal of 12011220163 is 36102211021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12011220163 - 2¹ = 12011220161 is a prime.

Together with 12011220161, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12011220163.

It is not a weakly prime, because it can be changed into another prime (12011220161) 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, 6005610081 + 6005610082.

It is an arithmetic number, because the mean of its divisors is an integer number (6005610082).

Almost surely, 2^12011220163 is an apocalyptic number.

12011220163 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011220163 is an equidigital number, since it uses as much as digits as its factorization.

12011220163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 12011220163 its reverse (36102211021), we get a palindrome (48113431184).

The spelling of 12011220163 in words is "twelve billion, eleven million, two hundred twenty thousand, one hundred sixty-three".