13222871 has 2 divisors, whose sum is σ = 13222872. Its totient is φ = 13222870.

The previous prime is 13222849. The next prime is 13222873. The reversal of 13222871 is 17822231.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13222871 is a prime.

Together with 13222873, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13222871.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13222873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6611435 + 6611436.

It is an arithmetic number, because the mean of its divisors is an integer number (6611436).

Almost surely, 2^13222871 is an apocalyptic number.

13222871 is a deficient number, since it is larger than the sum of its proper divisors (1).

13222871 is an equidigital number, since it uses as much as digits as its factorization.

13222871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1344, while the sum is 26.

The square root of 13222871 is about 3636.3265804930. The cubic root of 13222871 is about 236.4695656671.

The spelling of 13222871 in words is "thirteen million, two hundred twenty-two thousand, eight hundred seventy-one".