12122101211209 has 8 divisors (see below), whose sum is σ = 13505474464128. Its totient is φ = 10785621966960.

The previous prime is 12122101211203. The next prime is 12122101211219. The reversal of 12122101211209 is 90211210122121.

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 12122101211209 - 2¹¹ = 12122101209161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12122101211203) 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, 11723501622 + ... + 11723502655.

It is an arithmetic number, because the mean of its divisors is an integer number (1688184308016).

Almost surely, 2^{12122101211209} is an apocalyptic number.

It is an amenable number.

12122101211209 is a deficient number, since it is larger than the sum of its proper divisors (1383373252919).

12122101211209 is a wasteful number, since it uses less digits than its factorization.

12122101211209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23447004335.

The product of its (nonzero) digits is 288, while the sum is 25.

The spelling of 12122101211209 in words is "twelve trillion, one hundred twenty-two billion, one hundred one million, two hundred eleven thousand, two hundred nine".