22248871 has 2 divisors, whose sum is σ = 22248872. Its totient is φ = 22248870.

The previous prime is 22248857. The next prime is 22248881. The reversal of 22248871 is 17884222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22248871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22248851) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11124435 + 11124436.

It is an arithmetic number, because the mean of its divisors is an integer number (11124436).

Almost surely, 2^22248871 is an apocalyptic number.

22248871 is a deficient number, since it is larger than the sum of its proper divisors (1).

22248871 is an equidigital number, since it uses as much as digits as its factorization.

22248871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14336, while the sum is 34.

The square root of 22248871 is about 4716.8708907495. The cubic root of 22248871 is about 281.2565591228.

The spelling of 22248871 in words is "twenty-two million, two hundred forty-eight thousand, eight hundred seventy-one".