12221124209 has 8 divisors (see below), whose sum is σ = 13973004480. Its totient is φ = 10470745296.

The previous prime is 12221124151. The next prime is 12221124217. The reversal of 12221124209 is 90242112221.

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

It is a cyclic number.

It is not a de Polignac number, because 12221124209 - 2¹⁶ = 12221058673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12221124709) 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 7 ways as a sum of consecutive naturals, for example, 357839 + ... + 390500.

It is an arithmetic number, because the mean of its divisors is an integer number (1746625560).

Almost surely, 2^12221124209 is an apocalyptic number.

It is an amenable number.

12221124209 is a deficient number, since it is larger than the sum of its proper divisors (1751880271).

12221124209 is an equidigital number, since it uses as much as digits as its factorization.

12221124209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750679.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 12221124209 in words is "twelve billion, two hundred twenty-one million, one hundred twenty-four thousand, two hundred nine".