11221011163 has 2 divisors, whose sum is σ = 11221011164. Its totient is φ = 11221011162.

The previous prime is 11221011103. The next prime is 11221011169. The reversal of 11221011163 is 36111012211.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11221011163 is a prime.

It is a super-2 number, since 2×11221011163² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11221011163.

It is not a weakly prime, because it can be changed into another prime (11221011169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610505581 + 5610505582.

It is an arithmetic number, because the mean of its divisors is an integer number (5610505582).

Almost surely, 2^11221011163 is an apocalyptic number.

11221011163 is a deficient number, since it is larger than the sum of its proper divisors (1).

11221011163 is an equidigital number, since it uses as much as digits as its factorization.

11221011163 is an evil number, because the sum of its binary digits is even.

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

Adding to 11221011163 its reverse (36111012211), we get a palindrome (47332023374).

The spelling of 11221011163 in words is "eleven billion, two hundred twenty-one million, eleven thousand, one hundred sixty-three".