12011221211300 has 72 divisors (see below), whose sum is σ = 26430633331200. Its totient is φ = 4737271601920.

The previous prime is 12011221211293. The next prime is 12011221211419. The reversal of 12011221211300 is 311212211021.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1315469 + ... + 5074731.

It is an arithmetic number, because the mean of its divisors is an integer number (367092129600).

Almost surely, 2^{12011221211300} is an apocalyptic number.

12011221211300 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 12011221211300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13215316665600).

12011221211300 is an abundant number, since it is smaller than the sum of its proper divisors (14419412119900).

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

12011221211300 is a wasteful number, since it uses less digits than its factorization.

12011221211300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3759725 (or 3759718 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 12011221211300 its reverse (311212211021), we get a palindrome (12322433422321).

The spelling of 12011221211300 in words is "twelve trillion, eleven billion, two hundred twenty-one million, two hundred eleven thousand, three hundred".