12122211111009 has 8 divisors (see below), whose sum is σ = 16174651953792. Its totient is φ = 8075622171120.

The previous prime is 12122211111001. The next prime is 12122211111079. The reversal of 12122211111009 is 90011111222121.

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

It is not a de Polignac number, because 12122211111009 - 2³ = 12122211111001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12122211111009.

It is not an unprimeable number, because it can be changed into a prime (12122211111001) 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, 1462970889 + ... + 1462979174.

It is an arithmetic number, because the mean of its divisors is an integer number (2021831494224).

Almost surely, 2^{12122211111009} is an apocalyptic number.

It is an amenable number.

12122211111009 is a deficient number, since it is larger than the sum of its proper divisors (4052440842783).

12122211111009 is a wasteful number, since it uses less digits than its factorization.

12122211111009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2925951447.

The product of its (nonzero) digits is 144, while the sum is 24.

The spelling of 12122211111009 in words is "twelve trillion, one hundred twenty-two billion, two hundred eleven million, one hundred eleven thousand, nine".