110020121220 has 24 divisors (see below), whose sum is σ = 308056339584. Its totient is φ = 29338698976.

The previous prime is 110020121201. The next prime is 110020121261. The reversal of 110020121220 is 22121020011.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 110020121196 and 110020121205.

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 7 ways as a sum of consecutive naturals, for example, 916834284 + ... + 916834403.

It is an arithmetic number, because the mean of its divisors is an integer number (12835680816).

Almost surely, 2^110020121220 is an apocalyptic number.

110020121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110020121220 is an abundant number, since it is smaller than the sum of its proper divisors (198036218364).

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

110020121220 is a wasteful number, since it uses less digits than its factorization.

110020121220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833668699 (or 1833668697 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 110020121220 its reverse (22121020011), we get a palindrome (132141141231).

The spelling of 110020121220 in words is "one hundred ten billion, twenty million, one hundred twenty-one thousand, two hundred twenty".