243122242215 has 48 divisors (see below), whose sum is σ = 411584351328. Its totient is φ = 122530205952.

The previous prime is 243122242211. The next prime is 243122242217. The reversal of 243122242215 is 512242221342.

243122242215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 243122242215 - 2² = 243122242211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243122242211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2093209 + ... + 2206301.

It is an arithmetic number, because the mean of its divisors is an integer number (8574673986).

Almost surely, 2^243122242215 is an apocalyptic number.

243122242215 is a deficient number, since it is larger than the sum of its proper divisors (168462109113).

243122242215 is a wasteful number, since it uses less digits than its factorization.

243122242215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113536 (or 113517 counting only the distinct ones).

The product of its digits is 15360, while the sum is 30.

Adding to 243122242215 its reverse (512242221342), we get a palindrome (755364463557).

The spelling of 243122242215 in words is "two hundred forty-three billion, one hundred twenty-two million, two hundred forty-two thousand, two hundred fifteen".