2101330220 has 96 divisors (see below), whose sum is σ = 5193792576. Its totient is φ = 705536000.

The previous prime is 2101330219. The next prime is 2101330223. The reversal of 2101330220 is 220331012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2101330195 and 2101330204.

It is not an unprimeable number, because it can be changed into a prime (2101330223) 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, 192920 + ... + 203520.

It is an arithmetic number, because the mean of its divisors is an integer number (54102006).

Almost surely, 2^2101330220 is an apocalyptic number.

2101330220 is a gapful number since it is divisible by the number (20) 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 2101330220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2596896288).

2101330220 is an abundant number, since it is smaller than the sum of its proper divisors (3092462356).

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

2101330220 is a wasteful number, since it uses less digits than its factorization.

2101330220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10691 (or 10689 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2101330220 is about 45840.2685419708. The cubic root of 2101330220 is about 1280.8494971250.

Adding to 2101330220 its reverse (220331012), we get a palindrome (2321661232).

The spelling of 2101330220 in words is "two billion, one hundred one million, three hundred thirty thousand, two hundred twenty".