12012122023312 has 160 divisors (see below), whose sum is σ = 25439124791808. Its totient is φ = 5471669035008.

The previous prime is 12012122023283. The next prime is 12012122023331. The reversal of 12012122023312 is 21332022121021.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2026675293 + ... + 2026681219.

Almost surely, 2^{12012122023312} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12012122023312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12719562395904).

12012122023312 is an abundant number, since it is smaller than the sum of its proper divisors (13427002768496).

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

12012122023312 is a wasteful number, since it uses less digits than its factorization.

12012122023312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6993 (or 6987 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 12012122023312 its reverse (21332022121021), we get a palindrome (33344144144333).

The spelling of 12012122023312 in words is "twelve trillion, twelve billion, one hundred twenty-two million, twenty-three thousand, three hundred twelve".