22111011163 has 2 divisors, whose sum is σ = 22111011164. Its totient is φ = 22111011162.

The previous prime is 22111011157. The next prime is 22111011233. The reversal of 22111011163 is 36111011122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22111011163 - 2²¹ = 22108914011 is a prime.

It is a super-2 number, since 2×22111011163² (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 22111011163.

It is not a weakly prime, because it can be changed into another prime (22111011463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11055505581 + 11055505582.

It is an arithmetic number, because the mean of its divisors is an integer number (11055505582).

Almost surely, 2^22111011163 is an apocalyptic number.

22111011163 is a deficient number, since it is larger than the sum of its proper divisors (1).

22111011163 is an equidigital number, since it uses as much as digits as its factorization.

22111011163 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 22111011163 its reverse (36111011122), we get a palindrome (58222022285).

The spelling of 22111011163 in words is "twenty-two billion, one hundred eleven million, eleven thousand, one hundred sixty-three".