12000011001111 has 64 divisors (see below), whose sum is σ = 20354922086400. Its totient is φ = 6844517820000.

The previous prime is 12000011001079. The next prime is 12000011001131. The reversal of 12000011001111 is 11110011000021.

It is not a de Polignac number, because 12000011001111 - 2⁵ = 12000011001079 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 12000011001093 and 12000011001102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000011001131) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 566588920 + ... + 566610098.

It is an arithmetic number, because the mean of its divisors is an integer number (318045657600).

Almost surely, 2^{12000011001111} is an apocalyptic number.

12000011001111 is a deficient number, since it is larger than the sum of its proper divisors (8354911085289).

12000011001111 is a wasteful number, since it uses less digits than its factorization.

12000011001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26577 (or 26571 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 12000011001111 its reverse (11110011000021), we get a palindrome (23110022001132).

The spelling of 12000011001111 in words is "twelve trillion, eleven million, one thousand, one hundred eleven".