2020202021220 has 96 divisors (see below), whose sum is σ = 5673239298048. Its totient is φ = 537133237632.

The previous prime is 2020202021213. The next prime is 2020202021231. The reversal of 2020202021220 is 221202020202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2020202021220.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147593217 + ... + 147606903.

It is an arithmetic number, because the mean of its divisors is an integer number (59096242688).

Almost surely, 2^{2020202021220} is an apocalyptic number.

2020202021220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020202021220 is an abundant number, since it is smaller than the sum of its proper divisors (3653037276828).

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

2020202021220 is a wasteful number, since it uses less digits than its factorization.

2020202021220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20769 (or 20767 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 2020202021220 its reverse (221202020202), we get a palindrome (2241404041422).

The spelling of 2020202021220 in words is "two trillion, twenty billion, two hundred two million, twenty-one thousand, two hundred twenty".