12213127 has 2 divisors, whose sum is σ = 12213128. Its totient is φ = 12213126.

The previous prime is 12213109. The next prime is 12213137. The reversal of 12213127 is 72131221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12213127 - 2¹¹ = 12211079 is a prime.

It is a super-2 number, since 2×12213127² = 298320942236258, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12213137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106563 + 6106564.

It is an arithmetic number, because the mean of its divisors is an integer number (6106564).

Almost surely, 2^12213127 is an apocalyptic number.

12213127 is a deficient number, since it is larger than the sum of its proper divisors (1).

12213127 is an equidigital number, since it uses as much as digits as its factorization.

12213127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 168, while the sum is 19.

The square root of 12213127 is about 3494.7284586932. The cubic root of 12213127 is about 230.2902887896.

Adding to 12213127 its reverse (72131221), we get a palindrome (84344348).

The spelling of 12213127 in words is "twelve million, two hundred thirteen thousand, one hundred twenty-seven".