22422653212543 has 4 divisors (see below), whose sum is σ = 23145964606528. Its totient is φ = 21699341818560.

The previous prime is 22422653212499. The next prime is 22422653212579. The reversal of 22422653212543 is 34521235622422.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22422653212543 - 2¹³ = 22422653204351 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22422653212543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22422653218543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361655696946 + ... + 361655697007.

It is an arithmetic number, because the mean of its divisors is an integer number (5786491151632).

Almost surely, 2^{22422653212543} is an apocalyptic number.

22422653212543 is a deficient number, since it is larger than the sum of its proper divisors (723311393985).

22422653212543 is an equidigital number, since it uses as much as digits as its factorization.

22422653212543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723311393984.

The product of its digits is 1382400, while the sum is 43.

Adding to 22422653212543 its reverse (34521235622422), we get a palindrome (56943888834965).

The spelling of 22422653212543 in words is "twenty-two trillion, four hundred twenty-two billion, six hundred fifty-three million, two hundred twelve thousand, five hundred forty-three".