22153321243 has 2 divisors, whose sum is σ = 22153321244. Its totient is φ = 22153321242.

The previous prime is 22153321213. The next prime is 22153321247. The reversal of 22153321243 is 34212335122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22153321243 - 2¹³ = 22153313051 is a prime.

It is not a weakly prime, because it can be changed into another prime (22153321247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11076660621 + 11076660622.

It is an arithmetic number, because the mean of its divisors is an integer number (11076660622).

Almost surely, 2^22153321243 is an apocalyptic number.

22153321243 is a deficient number, since it is larger than the sum of its proper divisors (1).

22153321243 is an equidigital number, since it uses as much as digits as its factorization.

22153321243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 28.

Adding to 22153321243 its reverse (34212335122), we get a palindrome (56365656365).

It can be divided in two parts, 22153 and 321243, that added together give a square (343396 = 586²).

The spelling of 22153321243 in words is "twenty-two billion, one hundred fifty-three million, three hundred twenty-one thousand, two hundred forty-three".