12012231232122 has 96 divisors (see below), whose sum is σ = 27024675511680. Its totient is φ = 3555875030400.

The previous prime is 12012231232121. The next prime is 12012231232153. The reversal of 12012231232122 is 22123213221021.

12012231232122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12012231232092 and 12012231232101.

It is not an unprimeable number, because it can be changed into a prime (12012231232121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4549528 + ... + 6687500.

It is an arithmetic number, because the mean of its divisors is an integer number (281507036580).

Almost surely, 2^{12012231232122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12012231232122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13512337755840).

12012231232122 is an abundant number, since it is smaller than the sum of its proper divisors (15012444279558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12012231232122 is a wasteful number, since it uses less digits than its factorization.

12012231232122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2138180 (or 2138169 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 12012231232122 its reverse (22123213221021), we get a palindrome (34135444453143).

The spelling of 12012231232122 in words is "twelve trillion, twelve billion, two hundred thirty-one million, two hundred thirty-two thousand, one hundred twenty-two".