12011220167 has 2 divisors, whose sum is σ = 12011220168. Its totient is φ = 12011220166.

The previous prime is 12011220163. The next prime is 12011220187. The reversal of 12011220167 is 76102211021.

It is a weak prime.

It is an emirp because it is prime and its reverse (76102211021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12011220167 - 2² = 12011220163 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011220161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005610083 + 6005610084.

It is an arithmetic number, because the mean of its divisors is an integer number (6005610084).

Almost surely, 2^12011220167 is an apocalyptic number.

12011220167 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011220167 is an equidigital number, since it uses as much as digits as its factorization.

12011220167 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 23.

Adding to 12011220167 its reverse (76102211021), we get a palindrome (88113431188).

The spelling of 12011220167 in words is "twelve billion, eleven million, two hundred twenty thousand, one hundred sixty-seven".