12052221698 has 12 divisors (see below), whose sum is σ = 19871225430. Its totient is φ = 5478282480.

The previous prime is 12052221673. The next prime is 12052221733. The reversal of 12052221698 is 89612225021.

12052221698 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 only one way, i.e., 9059803489 + 2992418209 = 95183^2 + 54703^2 .

It is a Curzon number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 24901043 + ... + 24901526.

Almost surely, 2^12052221698 is an apocalyptic number.

12052221698 is a deficient number, since it is larger than the sum of its proper divisors (7819003732).

12052221698 is a wasteful number, since it uses less digits than its factorization.

12052221698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49802593 (or 49802582 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 12052221698 in words is "twelve billion, fifty-two million, two hundred twenty-one thousand, six hundred ninety-eight".