22271089 has 2 divisors, whose sum is σ = 22271090. Its totient is φ = 22271088.

The previous prime is 22271083. The next prime is 22271099. The reversal of 22271089 is 98017222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15681600 + 6589489 = 3960^2 + 2567^2 .

It is a cyclic number.

It is not a de Polignac number, because 22271089 - 2¹¹ = 22269041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22271089.

It is not a weakly prime, because it can be changed into another prime (22271083) 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, 11135544 + 11135545.

It is an arithmetic number, because the mean of its divisors is an integer number (11135545).

Almost surely, 2^22271089 is an apocalyptic number.

It is an amenable number.

22271089 is a deficient number, since it is larger than the sum of its proper divisors (1).

22271089 is an equidigital number, since it uses as much as digits as its factorization.

22271089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 22271089 is about 4719.2254661120. The cubic root of 22271089 is about 281.3501500783.

The spelling of 22271089 in words is "twenty-two million, two hundred seventy-one thousand, eighty-nine".