12011001221986 has 16 divisors (see below), whose sum is σ = 19449825204600. Its totient is φ = 5529985135488.

The previous prime is 12011001221977. The next prime is 12011001222019. The reversal of 12011001221986 is 68912210011021.

12011001221986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11810776295761 + 200224926225 = 3436681^2 + 447465^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564734581 + ... + 564755848.

Almost surely, 2^{12011001221986} is an apocalyptic number.

12011001221986 is a deficient number, since it is larger than the sum of its proper divisors (7438823982614).

12011001221986 is a wasteful number, since it uses less digits than its factorization.

12011001221986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129490853.

The product of its (nonzero) digits is 3456, while the sum is 34.

The spelling of 12011001221986 in words is "twelve trillion, eleven billion, one million, two hundred twenty-one thousand, nine hundred eighty-six".