12111002001111 has 16 divisors (see below), whose sum is σ = 17989817297760. Its totient is φ = 7195926917760.

The previous prime is 12111002001103. The next prime is 12111002001139. The reversal of 12111002001111 is 11110020011121.

It is not a de Polignac number, because 12111002001111 - 2³ = 12111002001103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111002001011) 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, 5354111160 + ... + 5354113421.

It is an arithmetic number, because the mean of its divisors is an integer number (1124363581110).

Almost surely, 2^{12111002001111} is an apocalyptic number.

12111002001111 is a deficient number, since it is larger than the sum of its proper divisors (5878815296649).

12111002001111 is a wasteful number, since it uses less digits than its factorization.

12111002001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10708224626.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 12111002001111 its reverse (11110020011121), we get a palindrome (23221022012232).

It can be divided in two parts, 1 and 2111002001111, that added together give a palindrome (2111002001112).

The spelling of 12111002001111 in words is "twelve trillion, one hundred eleven billion, two million, one thousand, one hundred eleven".