12215167 has 2 divisors, whose sum is σ = 12215168. Its totient is φ = 12215166.

The previous prime is 12215149. The next prime is 12215173. The reversal of 12215167 is 76151221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12215167 - 2⁷ = 12215039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12215267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6107583 + 6107584.

It is an arithmetic number, because the mean of its divisors is an integer number (6107584).

Almost surely, 2^12215167 is an apocalyptic number.

12215167 is a deficient number, since it is larger than the sum of its proper divisors (1).

12215167 is an equidigital number, since it uses as much as digits as its factorization.

12215167 is an evil number, because the sum of its binary digits is even.

The product of its digits is 840, while the sum is 25.

The square root of 12215167 is about 3495.0203146763. The cubic root of 12215167 is about 230.3031101316.

Adding to 12215167 its reverse (76151221), we get a palindrome (88366388).

The spelling of 12215167 in words is "twelve million, two hundred fifteen thousand, one hundred sixty-seven".