12011101110 has 24 divisors (see below), whose sum is σ = 31228863120. Its totient is φ = 3202960272.

The previous prime is 12011101057. The next prime is 12011101111. The reversal of 12011101110 is 1110111021.

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 = 12011101092 and 12011101101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011101111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66728250 + ... + 66728429.

It is an arithmetic number, because the mean of its divisors is an integer number (1301202630).

Almost surely, 2^12011101110 is an apocalyptic number.

12011101110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12011101110 is an abundant number, since it is smaller than the sum of its proper divisors (19217762010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12011101110 is a wasteful number, since it uses less digits than its factorization.

12011101110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133456692 (or 133456689 counting only the distinct ones).

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

Adding to 12011101110 its reverse (1110111021), we get a palindrome (13121212131).

It can be divided in two parts, 120111011 and 10, that added together give a palindrome (120111021).

The spelling of 12011101110 in words is "twelve billion, eleven million, one hundred one thousand, one hundred ten".