12011221096 has 32 divisors (see below), whose sum is σ = 25966117440. Its totient is φ = 5102108928.

The previous prime is 12011221049. The next prime is 12011221097. The reversal of 12011221096 is 69012211021.

It is a happy number.

12011221096 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12011221096.

It is not an unprimeable number, because it can be changed into a prime (12011221097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 942726 + ... + 955381.

It is an arithmetic number, because the mean of its divisors is an integer number (811441170).

Almost surely, 2^12011221096 is an apocalyptic number.

It is an amenable number.

12011221096 is an abundant number, since it is smaller than the sum of its proper divisors (13954896344).

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

12011221096 is a wasteful number, since it uses less digits than its factorization.

12011221096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1898233 (or 1898229 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 12011221096 in words is "twelve billion, eleven million, two hundred twenty-one thousand, ninety-six".