12221753798 has 8 divisors (see below), whose sum is σ = 19411020792. Its totient is φ = 5751413536.

The previous prime is 12221753783. The next prime is 12221753809. The reversal of 12221753798 is 89735712221.

It is a happy number.

12221753798 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 179731640 + ... + 179731707.

It is an arithmetic number, because the mean of its divisors is an integer number (2426377599).

Almost surely, 2^12221753798 is an apocalyptic number.

12221753798 is a deficient number, since it is larger than the sum of its proper divisors (7189266994).

12221753798 is a wasteful number, since it uses less digits than its factorization.

12221753798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359463366.

The product of its digits is 423360, while the sum is 47.

The spelling of 12221753798 in words is "twelve billion, two hundred twenty-one million, seven hundred fifty-three thousand, seven hundred ninety-eight".