12011101011111 has 8 divisors (see below), whose sum is σ = 16014899288320. Its totient is φ = 8007351703992.

The previous prime is 12011101011059. The next prime is 12011101011157. The reversal of 12011101011111 is 11111010111021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12011101011111 - 2¹³ = 12011101002919 is a prime.

It is a super-2 number, since 2×12011101011111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011101011191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11666341 + ... + 12654078.

It is an arithmetic number, because the mean of its divisors is an integer number (2001862411040).

Almost surely, 2^{12011101011111} is an apocalyptic number.

12011101011111 is a deficient number, since it is larger than the sum of its proper divisors (4003798277209).

12011101011111 is a wasteful number, since it uses less digits than its factorization.

12011101011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24485045.

The product of its (nonzero) digits is 2, while the sum is 12.

Adding to 12011101011111 its reverse (11111010111021), we get a palindrome (23122111122132).

The spelling of 12011101011111 in words is "twelve trillion, eleven billion, one hundred one million, eleven thousand, one hundred eleven".