22022226542543 has 4 divisors (see below), whose sum is σ = 22022294144760. Its totient is φ = 22022158940328.

The previous prime is 22022226542467. The next prime is 22022226542639. The reversal of 22022226542543 is 34524562222022.

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 22022226542543 - 2⁴² = 17624180031439 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 22022226542543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22022226542243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33310088 + ... + 33964781.

It is an arithmetic number, because the mean of its divisors is an integer number (5505573536190).

Almost surely, 2^{22022226542543} is an apocalyptic number.

22022226542543 is a deficient number, since it is larger than the sum of its proper divisors (67602217).

22022226542543 is an equidigital number, since it uses as much as digits as its factorization.

22022226542543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67602216.

The product of its (nonzero) digits is 921600, while the sum is 41.

Adding to 22022226542543 its reverse (34524562222022), we get a palindrome (56546788764565).

The spelling of 22022226542543 in words is "twenty-two trillion, twenty-two billion, two hundred twenty-six million, five hundred forty-two thousand, five hundred forty-three".