242244222205 has 4 divisors (see below), whose sum is σ = 290693066652. Its totient is φ = 193795377760.

The previous prime is 242244222191. The next prime is 242244222251. The reversal of 242244222205 is 502222442242.

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

It can be written as a sum of positive squares in 2 ways, for example, as 109647739161 + 132596483044 = 331131^2 + 364138^2 .

It is not a de Polignac number, because 242244222205 - 2²⁵ = 242210667773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24224422216 + ... + 24224422225.

It is an arithmetic number, because the mean of its divisors is an integer number (72673266663).

Almost surely, 2^242244222205 is an apocalyptic number.

It is an amenable number.

242244222205 is a deficient number, since it is larger than the sum of its proper divisors (48448844447).

242244222205 is an equidigital number, since it uses as much as digits as its factorization.

242244222205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48448844446.

The product of its (nonzero) digits is 40960, while the sum is 31.

Adding to 242244222205 its reverse (502222442242), we get a palindrome (744466664447).

The spelling of 242244222205 in words is "two hundred forty-two billion, two hundred forty-four million, two hundred twenty-two thousand, two hundred five".