243121222234 has 16 divisors (see below), whose sum is σ = 400216977216. Its totient is φ = 109847910400.

The previous prime is 243121222177. The next prime is 243121222237. The reversal of 243121222234 is 432222121342.

It is not an unprimeable number, because it can be changed into a prime (243121222237) 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, 33083047 + ... + 33090394.

It is an arithmetic number, because the mean of its divisors is an integer number (25013561076).

Almost surely, 2^243121222234 is an apocalyptic number.

243121222234 is a deficient number, since it is larger than the sum of its proper divisors (157095754982).

243121222234 is a wasteful number, since it uses less digits than its factorization.

243121222234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66173621.

The product of its digits is 9216, while the sum is 28.

Adding to 243121222234 its reverse (432222121342), we get a palindrome (675343343576).

The spelling of 243121222234 in words is "two hundred forty-three billion, one hundred twenty-one million, two hundred twenty-two thousand, two hundred thirty-four".