110021012220 has 144 divisors (see below), whose sum is σ = 363703374720. Its totient is φ = 24772277376.

The previous prime is 110021012197. The next prime is 110021012251. The reversal of 110021012220 is 22210120011.

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 = 110021012196 and 110021012205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 82290 + ... + 476249.

It is an arithmetic number, because the mean of its divisors is an integer number (2525717880).

Almost surely, 2^110021012220 is an apocalyptic number.

110021012220 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 110021012220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181851687360).

110021012220 is an abundant number, since it is smaller than the sum of its proper divisors (253682362500).

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

110021012220 is a wasteful number, since it uses less digits than its factorization.

110021012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558632 (or 558623 counting only the distinct ones).

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

Adding to 110021012220 its reverse (22210120011), we get a palindrome (132231132231).

The spelling of 110021012220 in words is "one hundred ten billion, twenty-one million, twelve thousand, two hundred twenty".