22143041105555 has 4 divisors (see below), whose sum is σ = 26571649326672. Its totient is φ = 17714432884440.

The previous prime is 22143041105527. The next prime is 22143041105557. The reversal of 22143041105555 is 55550114034122.

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

It is not a de Polignac number, because 22143041105555 - 2⁸ = 22143041105299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22143041105557) 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, 2214304110551 + ... + 2214304110560.

It is an arithmetic number, because the mean of its divisors is an integer number (6642912331668).

Almost surely, 2^{22143041105555} is an apocalyptic number.

22143041105555 is a deficient number, since it is larger than the sum of its proper divisors (4428608221117).

22143041105555 is an equidigital number, since it uses as much as digits as its factorization.

22143041105555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4428608221116.

The product of its (nonzero) digits is 120000, while the sum is 38.

Adding to 22143041105555 its reverse (55550114034122), we get a palindrome (77693155139677).

The spelling of 22143041105555 in words is "twenty-two trillion, one hundred forty-three billion, forty-one million, one hundred five thousand, five hundred fifty-five".