12227071 has 2 divisors, whose sum is σ = 12227072. Its totient is φ = 12227070.

The previous prime is 12227069. The next prime is 12227077. The reversal of 12227071 is 17072221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12227071 - 2¹ = 12227069 is a prime.

Together with 12227069, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12227077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6113535 + 6113536.

It is an arithmetic number, because the mean of its divisors is an integer number (6113536).

Almost surely, 2^12227071 is an apocalyptic number.

12227071 is a deficient number, since it is larger than the sum of its proper divisors (1).

12227071 is an equidigital number, since it uses as much as digits as its factorization.

12227071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 12227071 is about 3496.7228943684. The cubic root of 12227071 is about 230.3778979791.

Adding to 12227071 its reverse (17072221), we get a palindrome (29299292).

The spelling of 12227071 in words is "twelve million, two hundred twenty-seven thousand, seventy-one".