243121244222 has 4 divisors (see below), whose sum is σ = 364681866336. Its totient is φ = 121560622110.

The previous prime is 243121244213. The next prime is 243121244287. The reversal of 243121244222 is 222442121342.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60780311054 + ... + 60780311057.

It is an arithmetic number, because the mean of its divisors is an integer number (91170466584).

Almost surely, 2^243121244222 is an apocalyptic number.

243121244222 is a deficient number, since it is larger than the sum of its proper divisors (121560622114).

243121244222 is a wasteful number, since it uses less digits than its factorization.

243121244222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121560622113.

The product of its digits is 12288, while the sum is 29.

Adding to 243121244222 its reverse (222442121342), we get a palindrome (465563365564).

The spelling of 243121244222 in words is "two hundred forty-three billion, one hundred twenty-one million, two hundred forty-four thousand, two hundred twenty-two".