23331222115 has 4 divisors (see below), whose sum is σ = 27997466544. Its totient is φ = 18664977688.

The previous prime is 23331222041. The next prime is 23331222119. The reversal of 23331222115 is 51122213332.

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

It is a cyclic number.

It is not a de Polignac number, because 23331222115 - 2¹³ = 23331213923 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23331222115.

It is not an unprimeable number, because it can be changed into a prime (23331222119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2333122207 + ... + 2333122216.

It is an arithmetic number, because the mean of its divisors is an integer number (6999366636).

Almost surely, 2^23331222115 is an apocalyptic number.

23331222115 is a deficient number, since it is larger than the sum of its proper divisors (4666244429).

23331222115 is an equidigital number, since it uses as much as digits as its factorization.

23331222115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4666244428.

The product of its digits is 2160, while the sum is 25.

Adding to 23331222115 its reverse (51122213332), we get a palindrome (74453435447).

The spelling of 23331222115 in words is "twenty-three billion, three hundred thirty-one million, two hundred twenty-two thousand, one hundred fifteen".