20013030220 has 96 divisors (see below), whose sum is σ = 45842227200. Its totient is φ = 7310995200.

The previous prime is 20013030217. The next prime is 20013030223. The reversal of 20013030220 is 2203031002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20013030217) and next prime (20013030223).

It is a self number, because there is not a number n which added to its sum of digits gives 20013030220.

It is not an unprimeable number, because it can be changed into a prime (20013030223) 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, 3189246 + ... + 3195514.

It is an arithmetic number, because the mean of its divisors is an integer number (477523200).

Almost surely, 2^20013030220 is an apocalyptic number.

20013030220 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 20013030220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22921113600).

20013030220 is an abundant number, since it is smaller than the sum of its proper divisors (25829196980).

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

20013030220 is a wasteful number, since it uses less digits than its factorization.

20013030220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6599 (or 6597 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20013030220 its reverse (2203031002), we get a palindrome (22216061222).

The spelling of 20013030220 in words is "twenty billion, thirteen million, thirty thousand, two hundred twenty".