12101111020110 has 96 divisors (see below), whose sum is σ = 33795375865632. Its totient is φ = 2765063589120.

The previous prime is 12101111020109. The next prime is 12101111020183. The reversal of 12101111020110 is 1102011110121.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 3155004 + ... + 5844336.

It is an arithmetic number, because the mean of its divisors is an integer number (352035165267).

Almost surely, 2^{12101111020110} is an apocalyptic number.

12101111020110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12101111020110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16897687932816).

12101111020110 is an abundant number, since it is smaller than the sum of its proper divisors (21694264845522).

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

12101111020110 is a wasteful number, since it uses less digits than its factorization.

12101111020110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2692418 (or 2692411 counting only the distinct ones).

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

Adding to 12101111020110 its reverse (1102011110121), we get a palindrome (13203122130231).

The spelling of 12101111020110 in words is "twelve trillion, one hundred one billion, one hundred eleven million, twenty thousand, one hundred ten".