12219421243 has 8 divisors (see below), whose sum is σ = 12313928880. Its totient is φ = 12125242080.

The previous prime is 12219421231. The next prime is 12219421267. The reversal of 12219421243 is 34212491221.

12219421243 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 cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12219421243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12219421213) 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, 7168 + ... + 156493.

It is an arithmetic number, because the mean of its divisors is an integer number (1539241110).

Almost surely, 2^12219421243 is an apocalyptic number.

12219421243 is a deficient number, since it is larger than the sum of its proper divisors (94507637).

12219421243 is a wasteful number, since it uses less digits than its factorization.

12219421243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164237.

The product of its digits is 6912, while the sum is 31.

The spelling of 12219421243 in words is "twelve billion, two hundred nineteen million, four hundred twenty-one thousand, two hundred forty-three".