21112100010163 has 2 divisors, whose sum is σ = 21112100010164. Its totient is φ = 21112100010162.

The previous prime is 21112100010103. The next prime is 21112100010203. The reversal of 21112100010163 is 36101000121112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21112100010163 - 2³⁷ = 20974661056691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21112100010163.

It is not a weakly prime, because it can be changed into another prime (21112100010103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10556050005081 + 10556050005082.

It is an arithmetic number, because the mean of its divisors is an integer number (10556050005082).

Almost surely, 2^{21112100010163} is an apocalyptic number.

21112100010163 is a deficient number, since it is larger than the sum of its proper divisors (1).

21112100010163 is an equidigital number, since it uses as much as digits as its factorization.

21112100010163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 21112100010163 its reverse (36101000121112), we get a palindrome (57213100131275).

The spelling of 21112100010163 in words is "twenty-one trillion, one hundred twelve billion, one hundred million, ten thousand, one hundred sixty-three".