12011244100 has 72 divisors (see below), whose sum is σ = 26697735680. Its totient is φ = 4689083520.

The previous prime is 12011244059. The next prime is 12011244149. The reversal of 12011244100 is 144211021.

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, 722077 + ... + 738523.

Almost surely, 2^12011244100 is an apocalyptic number.

12011244100 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 12011244100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13348867840).

12011244100 is an abundant number, since it is smaller than the sum of its proper divisors (14686491580).

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

12011244100 is a wasteful number, since it uses less digits than its factorization.

12011244100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16637 (or 16630 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12011244100 its reverse (144211021), we get a palindrome (12155455121).

The spelling of 12011244100 in words is "twelve billion, eleven million, two hundred forty-four thousand, one hundred".