22271393 has 2 divisors, whose sum is σ = 22271394. Its totient is φ = 22271392.

The previous prime is 22271341. The next prime is 22271407. The reversal of 22271393 is 39317222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21603904 + 667489 = 4648^2 + 817^2 .

It is a cyclic number.

It is not a de Polignac number, because 22271393 - 2¹⁶ = 22205857 is a prime.

It is not a weakly prime, because it can be changed into another prime (22276393) 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, 11135696 + 11135697.

It is an arithmetic number, because the mean of its divisors is an integer number (11135697).

Almost surely, 2^22271393 is an apocalyptic number.

It is an amenable number.

22271393 is a deficient number, since it is larger than the sum of its proper divisors (1).

22271393 is an equidigital number, since it uses as much as digits as its factorization.

22271393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 29.

The square root of 22271393 is about 4719.2576746772. The cubic root of 22271393 is about 281.3514302141.

The spelling of 22271393 in words is "twenty-two million, two hundred seventy-one thousand, three hundred ninety-three".