11111220067 has 2 divisors, whose sum is σ = 11111220068. Its totient is φ = 11111220066.

The previous prime is 11111220061. The next prime is 11111220073. The reversal of 11111220067 is 76002211111.

11111220067 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (11111220061) and next prime (11111220073).

It is an emirp because it is prime and its reverse (76002211111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11111220067 - 2¹⁹ = 11110695779 is a prime.

It is a super-2 number, since 2×11111220067² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11111220061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555610033 + 5555610034.

It is an arithmetic number, because the mean of its divisors is an integer number (5555610034).

Almost surely, 2^11111220067 is an apocalyptic number.

11111220067 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111220067 is an equidigital number, since it uses as much as digits as its factorization.

11111220067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 22.

Adding to 11111220067 its reverse (76002211111), we get a palindrome (87113431178).

The spelling of 11111220067 in words is "eleven billion, one hundred eleven million, two hundred twenty thousand, sixty-seven".