2021130220 has 24 divisors (see below), whose sum is σ = 4250194704. Its totient is φ = 807343296.

The previous prime is 2021130179. The next prime is 2021130227. The reversal of 2021130220 is 220311202.

It is a self number, because there is not a number n which added to its sum of digits gives 2021130220.

It is not an unprimeable number, because it can be changed into a prime (2021130227) 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 7 ways as a sum of consecutive naturals, for example, 54274 + ... + 83593.

It is an arithmetic number, because the mean of its divisors is an integer number (177091446).

Almost surely, 2^2021130220 is an apocalyptic number.

2021130220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021130220 is an abundant number, since it is smaller than the sum of its proper divisors (2229064484).

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

2021130220 is a wasteful number, since it uses less digits than its factorization.

2021130220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138609 (or 138607 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2021130220 is about 44956.9818826843. The cubic root of 2021130220 is about 1264.3425830944.

Adding to 2021130220 its reverse (220311202), we get a palindrome (2241441422).

The spelling of 2021130220 in words is "two billion, twenty-one million, one hundred thirty thousand, two hundred twenty".