12020320288 has 96 divisors (see below), whose sum is σ = 25842571776. Its totient is φ = 5481934848.

The previous prime is 12020320267. The next prime is 12020320297. The reversal of 12020320288 is 88202302021.

It is a super-2 number, since 2×12020320288² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2390545 + ... + 2395567.

It is an arithmetic number, because the mean of its divisors is an integer number (269193456).

Almost surely, 2^12020320288 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 12020320288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12921285888).

12020320288 is an abundant number, since it is smaller than the sum of its proper divisors (13822251488).

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

12020320288 is a wasteful number, since it uses less digits than its factorization.

12020320288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5186 (or 5178 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The spelling of 12020320288 in words is "twelve billion, twenty million, three hundred twenty thousand, two hundred eighty-eight".