112121020110 has 128 divisors (see below), whose sum is σ = 301325142528. Its totient is φ = 26470080000.

The previous prime is 112121020051. The next prime is 112121020129. The reversal of 112121020110 is 11020121211.

It is a super-2 number, since 2×112121020110² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2005557 + ... + 2060703.

It is an arithmetic number, because the mean of its divisors is an integer number (2354102676).

Almost surely, 2^112121020110 is an apocalyptic number.

112121020110 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 112121020110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150662571264).

112121020110 is an abundant number, since it is smaller than the sum of its proper divisors (189204122418).

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

112121020110 is a wasteful number, since it uses less digits than its factorization.

112121020110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55330.

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

Adding to 112121020110 its reverse (11020121211), we get a palindrome (123141141321).

The spelling of 112121020110 in words is "one hundred twelve billion, one hundred twenty-one million, twenty thousand, one hundred ten".