12111102001001 has 16 divisors (see below), whose sum is σ = 12446976208128. Its totient is φ = 11777760892800.

The previous prime is 12111102000961. The next prime is 12111102001049. The reversal of 12111102001001 is 10010020111121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12111102001001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12111102001301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14467055 + ... + 15281291.

It is an arithmetic number, because the mean of its divisors is an integer number (777936013008).

Almost surely, 2^{12111102001001} is an apocalyptic number.

It is an amenable number.

12111102001001 is a deficient number, since it is larger than the sum of its proper divisors (335874207127).

12111102001001 is a wasteful number, since it uses less digits than its factorization.

12111102001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815792.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 12111102001001 its reverse (10010020111121), we get a palindrome (22121122112122).

The spelling of 12111102001001 in words is "twelve trillion, one hundred eleven billion, one hundred two million, one thousand, one".