12012002122112 has 64 divisors (see below), whose sum is σ = 24790658115600. Its totient is φ = 5790624000000.

The previous prime is 12012002122103. The next prime is 12012002122157. The reversal of 12012002122112 is 21122120021021.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293987 + ... + 4910237.

Almost surely, 2^{12012002122112} 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 12012002122112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12395329057800).

12012002122112 is an abundant number, since it is smaller than the sum of its proper divisors (12778655993488).

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

12012002122112 is an equidigital number, since it uses as much as digits as its factorization.

12012002122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4616995 (or 4616983 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12012002122112 its reverse (21122120021021), we get a palindrome (33134122143133).

The spelling of 12012002122112 in words is "twelve trillion, twelve billion, two million, one hundred twenty-two thousand, one hundred twelve".