12110220111 has 16 divisors (see below), whose sum is σ = 17633871360. Its totient is φ = 7331608320.

The previous prime is 12110220041. The next prime is 12110220149. The reversal of 12110220111 is 11102201121.

It is not a de Polignac number, because 12110220111 - 2¹⁷ = 12110089039 is a prime.

It is a super-2 number, since 2×12110220111² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110220211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166855 + ... + 228168.

It is an arithmetic number, because the mean of its divisors is an integer number (1102116960).

Almost surely, 2^12110220111 is an apocalyptic number.

12110220111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12110220111 is a deficient number, since it is larger than the sum of its proper divisors (5523651249).

12110220111 is a wasteful number, since it uses less digits than its factorization.

12110220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395966.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12110220111 its reverse (11102201121), we get a palindrome (23212421232).

It can be divided in two parts, 12110 and 220111, that added together give a triangular number (232221 = T₆₈₁).

The spelling of 12110220111 in words is "twelve billion, one hundred ten million, two hundred twenty thousand, one hundred eleven".