12011010198 has 32 divisors (see below), whose sum is σ = 26280979200. Its totient is φ = 3629264160.

The previous prime is 12011010191. The next prime is 12011010199. The reversal of 12011010198 is 89101011021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011010191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237690 + ... + 283757.

It is an arithmetic number, because the mean of its divisors is an integer number (821280600).

Almost surely, 2^12011010198 is an apocalyptic number.

12011010198 is an abundant number, since it is smaller than the sum of its proper divisors (14269969002).

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

12011010198 is a wasteful number, since it uses less digits than its factorization.

12011010198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521812.

The product of its (nonzero) digits is 144, while the sum is 24.

The spelling of 12011010198 in words is "twelve billion, eleven million, ten thousand, one hundred ninety-eight".