12021222163 has 2 divisors, whose sum is σ = 12021222164. Its totient is φ = 12021222162.

The previous prime is 12021222047. The next prime is 12021222217. The reversal of 12021222163 is 36122212021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12021222163 is a prime.

It is not a weakly prime, because it can be changed into another prime (12021223163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010611081 + 6010611082.

It is an arithmetic number, because the mean of its divisors is an integer number (6010611082).

Almost surely, 2^12021222163 is an apocalyptic number.

12021222163 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021222163 is an equidigital number, since it uses as much as digits as its factorization.

12021222163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 12021222163 its reverse (36122212021), we get a palindrome (48143434184).

The spelling of 12021222163 in words is "twelve billion, twenty-one million, two hundred twenty-two thousand, one hundred sixty-three".