12221139167 has 2 divisors, whose sum is σ = 12221139168. Its totient is φ = 12221139166.

The previous prime is 12221139157. The next prime is 12221139173. The reversal of 12221139167 is 76193112221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12221139167 - 2⁶ = 12221139103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12221139107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110569583 + 6110569584.

It is an arithmetic number, because the mean of its divisors is an integer number (6110569584).

Almost surely, 2^12221139167 is an apocalyptic number.

12221139167 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221139167 is an equidigital number, since it uses as much as digits as its factorization.

12221139167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 35.

The spelling of 12221139167 in words is "twelve billion, two hundred twenty-one million, one hundred thirty-nine thousand, one hundred sixty-seven".