110113121220 has 96 divisors (see below), whose sum is σ = 320980665600. Its totient is φ = 28170315264.

The previous prime is 110113121219. The next prime is 110113121221. The reversal of 110113121220 is 22121311011.

It is an interprime number because it is at equal distance from previous prime (110113121219) and next prime (110113121221).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 110113121220.

It is not an unprimeable number, because it can be changed into a prime (110113121221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71641 + ... + 474719.

It is an arithmetic number, because the mean of its divisors is an integer number (3343548600).

Almost surely, 2^110113121220 is an apocalyptic number.

110113121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 110113121220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160490332800).

110113121220 is an abundant number, since it is smaller than the sum of its proper divisors (210867544380).

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

110113121220 is a wasteful number, since it uses less digits than its factorization.

110113121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403277 (or 403275 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 110113121220 its reverse (22121311011), we get a palindrome (132234432231).

The spelling of 110113121220 in words is "one hundred ten billion, one hundred thirteen million, one hundred twenty-one thousand, two hundred twenty".