243222105235551 has 8 divisors (see below), whose sum is σ = 349241997261360. Its totient is φ = 149675141683392.

The previous prime is 243222105235489. The next prime is 243222105235573. The reversal of 243222105235551 is 155532501222342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 243222105235551 - 2³⁵ = 243187745497183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243222105235591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3118232118366 + ... + 3118232118443.

It is an arithmetic number, because the mean of its divisors is an integer number (43655249657670).

Almost surely, 2^{243222105235551} is an apocalyptic number.

243222105235551 is a deficient number, since it is larger than the sum of its proper divisors (106019892025809).

243222105235551 is a wasteful number, since it uses less digits than its factorization.

243222105235551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6236464236825.

The product of its (nonzero) digits is 720000, while the sum is 42.

Adding to 243222105235551 its reverse (155532501222342), we get a palindrome (398754606457893).

The spelling of 243222105235551 in words is "two hundred forty-three trillion, two hundred twenty-two billion, one hundred five million, two hundred thirty-five thousand, five hundred fifty-one".