10020021110220 has 144 divisors (see below), whose sum is σ = 30845666325600. Its totient is φ = 2428529832960.

The previous prime is 10020021110213. The next prime is 10020021110221. The reversal of 10020021110220 is 2201112002001.

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 = 10020021110196 and 10020021110205.

It is not an unprimeable number, because it can be changed into a prime (10020021110221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31415064 + ... + 31732416.

It is an arithmetic number, because the mean of its divisors is an integer number (214206016150).

Almost surely, 2^{10020021110220} is an apocalyptic number.

10020021110220 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 10020021110220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15422833162800).

10020021110220 is an abundant number, since it is smaller than the sum of its proper divisors (20825645215380).

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

10020021110220 is a wasteful number, since it uses less digits than its factorization.

10020021110220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321736 (or 321723 counting only the distinct ones).

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

Adding to 10020021110220 its reverse (2201112002001), we get a palindrome (12221133112221).

The spelling of 10020021110220 in words is "ten trillion, twenty billion, twenty-one million, one hundred ten thousand, two hundred twenty".