12001102111111 has 4 divisors (see below), whose sum is σ = 12010803892552. Its totient is φ = 11991400329672.

The previous prime is 12001102111109. The next prime is 12001102111121. The reversal of 12001102111111 is 11111120110021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12001102111111 - 2¹ = 12001102111109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12001102111091 and 12001102111100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001102111121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4850888865 + ... + 4850891338.

It is an arithmetic number, because the mean of its divisors is an integer number (3002700973138).

Almost surely, 2^{12001102111111} is an apocalyptic number.

12001102111111 is a deficient number, since it is larger than the sum of its proper divisors (9701781441).

12001102111111 is an equidigital number, since it uses as much as digits as its factorization.

12001102111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9701781440.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 12001102111111 its reverse (11111120110021), we get a palindrome (23112222221132).

The spelling of 12001102111111 in words is "twelve trillion, one billion, one hundred two million, one hundred eleven thousand, one hundred eleven".