12202271 has 2 divisors, whose sum is σ = 12202272. Its totient is φ = 12202270.

The previous prime is 12202249. The next prime is 12202279. The reversal of 12202271 is 17220221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12202271 - 2⁶ = 12202207 is a prime.

It is a Chen prime.

It is a zygodrome in base 6.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12202279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6101135 + 6101136.

It is an arithmetic number, because the mean of its divisors is an integer number (6101136).

Almost surely, 2^12202271 is an apocalyptic number.

12202271 is a deficient number, since it is larger than the sum of its proper divisors (1).

12202271 is an equidigital number, since it uses as much as digits as its factorization.

12202271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 12202271 is about 3493.1749168915. The cubic root of 12202271 is about 230.2220351124. Note that the first 3 decimals are identical.

Adding to 12202271 its reverse (17220221), we get a palindrome (29422492).

The spelling of 12202271 in words is "twelve million, two hundred two thousand, two hundred seventy-one".