22644223243 has 2 divisors, whose sum is σ = 22644223244. Its totient is φ = 22644223242.

The previous prime is 22644223229. The next prime is 22644223253. The reversal of 22644223243 is 34232244622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22644223243 - 2⁵ = 22644223211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22644223199 and 22644223208.

It is not a weakly prime, because it can be changed into another prime (22644223213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11322111621 + 11322111622.

It is an arithmetic number, because the mean of its divisors is an integer number (11322111622).

Almost surely, 2^22644223243 is an apocalyptic number.

22644223243 is a deficient number, since it is larger than the sum of its proper divisors (1).

22644223243 is an equidigital number, since it uses as much as digits as its factorization.

22644223243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592, while the sum is 34.

Adding to 22644223243 its reverse (34232244622), we get a palindrome (56876467865).

The spelling of 22644223243 in words is "twenty-two billion, six hundred forty-four million, two hundred twenty-three thousand, two hundred forty-three".