12110222121 has 16 divisors (see below), whose sum is σ = 16467503040. Its totient is φ = 7913505600.

The previous prime is 12110222107. The next prime is 12110222141. The reversal of 12110222121 is 12122201121.

12110222121 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 12110222121 - 2⁶ = 12110222057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12110222121.

It is not an unprimeable number, because it can be changed into a prime (12110222101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130875 + ... + 203343.

It is an arithmetic number, because the mean of its divisors is an integer number (1029218940).

Almost surely, 2^12110222121 is an apocalyptic number.

It is an amenable number.

12110222121 is a deficient number, since it is larger than the sum of its proper divisors (4357280919).

12110222121 is a wasteful number, since it uses less digits than its factorization.

12110222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73576.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12110222121 its reverse (12122201121), we get a palindrome (24232423242).

The spelling of 12110222121 in words is "twelve billion, one hundred ten million, two hundred twenty-two thousand, one hundred twenty-one".