12111120120011 has 16 divisors (see below), whose sum is σ = 13228695257568. Its totient is φ = 10996314278400.

The previous prime is 12111120119971. The next prime is 12111120120031. The reversal of 12111120120011 is 11002102111121.

It is not a de Polignac number, because 12111120120011 - 2³⁴ = 12093940250827 is a prime.

It is a super-2 number, since 2×12111120120011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12111120120031) 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, 28188581 + ... + 28615001.

It is an arithmetic number, because the mean of its divisors is an integer number (826793453598).

Almost surely, 2^{12111120120011} is an apocalyptic number.

12111120120011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12111120120011 is a deficient number, since it is larger than the sum of its proper divisors (1117575137557).

12111120120011 is a wasteful number, since it uses less digits than its factorization.

12111120120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429662.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 12111120120011 its reverse (11002102111121), we get a palindrome (23113222231132).

The spelling of 12111120120011 in words is "twelve trillion, one hundred eleven billion, one hundred twenty million, one hundred twenty thousand, eleven".