12011120000 has 160 divisors (see below), whose sum is σ = 32621589000. Its totient is φ = 4367360000.

The previous prime is 12011119997. The next prime is 12011120029. The reversal of 12011120000 is 2111021.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 12011120000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 873176 + ... + 886824.

Almost surely, 2^12011120000 is an apocalyptic number.

12011120000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12011120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16310794500).

12011120000 is an abundant number, since it is smaller than the sum of its proper divisors (20610469000).

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

12011120000 is an equidigital number, since it uses as much as digits as its factorization.

12011120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13694 (or 13667 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 12011120000 its reverse (2111021), we get a palindrome (12013231021).

The spelling of 12011120000 in words is "twelve billion, eleven million, one hundred twenty thousand".