12021012163 has 2 divisors, whose sum is σ = 12021012164. Its totient is φ = 12021012162.

The previous prime is 12021012151. The next prime is 12021012173. The reversal of 12021012163 is 36121012021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12021012163 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12021012163.

It is not a weakly prime, because it can be changed into another prime (12021012173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010506081 + 6010506082.

It is an arithmetic number, because the mean of its divisors is an integer number (6010506082).

Almost surely, 2^12021012163 is an apocalyptic number.

12021012163 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021012163 is an equidigital number, since it uses as much as digits as its factorization.

12021012163 is an evil number, because the sum of its binary digits is even.

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

Adding to 12021012163 its reverse (36121012021), we get a palindrome (48142024184).

The spelling of 12021012163 in words is "twelve billion, twenty-one million, twelve thousand, one hundred sixty-three".