22000243 has 2 divisors, whose sum is σ = 22000244. Its totient is φ = 22000242.

The previous prime is 22000211. The next prime is 22000249. The reversal of 22000243 is 34200022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22000243 - 2⁵ = 22000211 is a prime.

It is not a weakly prime, because it can be changed into another prime (22000249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11000121 + 11000122.

It is an arithmetic number, because the mean of its divisors is an integer number (11000122).

Almost surely, 2^22000243 is an apocalyptic number.

22000243 is a deficient number, since it is larger than the sum of its proper divisors (1).

22000243 is an equidigital number, since it uses as much as digits as its factorization.

22000243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 22000243 is about 4690.4416636389. The cubic root of 22000243 is about 280.2049647217.

Adding to 22000243 its reverse (34200022), we get a palindrome (56200265).

The spelling of 22000243 in words is "twenty-two million, two hundred forty-three", and thus it is an aban number.