12051522112 has 224 divisors, whose sum is σ = 29177406720. Its totient is φ = 4830658560.

The previous prime is 12051522089. The next prime is 12051522113. The reversal of 12051522112 is 21122515021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (224).

It is not an unprimeable number, because it can be changed into a prime (12051522113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91996287 + ... + 91996417.

It is an arithmetic number, because the mean of its divisors is an integer number (130256280).

Almost surely, 2^12051522112 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 12051522112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14588703360).

12051522112 is an abundant number, since it is smaller than the sum of its proper divisors (17125884608).

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

12051522112 is a wasteful number, since it uses less digits than its factorization.

12051522112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

The spelling of 12051522112 in words is "twelve billion, fifty-one million, five hundred twenty-two thousand, one hundred twelve".