2020221018 has 48 divisors (see below), whose sum is σ = 4611497280. Its totient is φ = 637414272.

The previous prime is 2020221011. The next prime is 2020221019. The reversal of 2020221018 is 8101220202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2020221011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 608130 + ... + 611442.

It is an arithmetic number, because the mean of its divisors is an integer number (96072860).

Almost surely, 2^2020221018 is an apocalyptic number.

2020221018 is an abundant number, since it is smaller than the sum of its proper divisors (2591276262).

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

2020221018 is a wasteful number, since it uses less digits than its factorization.

2020221018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5123 (or 5120 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 2020221018 is about 44946.8688342136. The cubic root of 2020221018 is about 1264.1529672035.

The spelling of 2020221018 in words is "two billion, twenty million, two hundred twenty-one thousand, eighteen".