12011201100000 has 576 divisors, whose sum is σ = 45200866959360. Its totient is φ = 3099643200000.

The previous prime is 12011201099983. The next prime is 12011201100001. The reversal of 12011201100000 is 110211021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011201100001) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 83628249 + ... + 83771751.

It is an arithmetic number, because the mean of its divisors is an integer number (78473727360).

Almost surely, 2^{12011201100000} is an apocalyptic number.

12011201100000 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 12011201100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22600433479680).

12011201100000 is an abundant number, since it is smaller than the sum of its proper divisors (33189665859360).

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

12011201100000 is an equidigital number, since it uses as much as digits as its factorization.

12011201100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143578 (or 143544 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 12011201100000 its reverse (110211021), we get a palindrome (12011311311021).

The spelling of 12011201100000 in words is "twelve trillion, eleven billion, two hundred one million, one hundred thousand".