12001010111 has 4 divisors (see below), whose sum is σ = 12113169192. Its totient is φ = 11888851032.

The previous prime is 12001010059. The next prime is 12001010149. The reversal of 12001010111 is 11101010021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11101010021 = 29 ⋅382793449.

It is a cyclic number.

It is not a de Polignac number, because 12001010111 - 2²² = 11996815807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001010171) 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 3 ways as a sum of consecutive naturals, for example, 56079380 + ... + 56079593.

It is an arithmetic number, because the mean of its divisors is an integer number (3028292298).

Almost surely, 2^12001010111 is an apocalyptic number.

12001010111 is a deficient number, since it is larger than the sum of its proper divisors (112159081).

12001010111 is a wasteful number, since it uses less digits than its factorization.

12001010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112159080.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 12001010111 its reverse (11101010021), we get a palindrome (23102020132).

The spelling of 12001010111 in words is "twelve billion, one million, ten thousand, one hundred eleven".