202020020220 has 192 divisors, whose sum is σ = 597954825216. Its totient is φ = 50860339200.

The previous prime is 202020020177. The next prime is 202020020227. The reversal of 202020020220 is 22020020202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 202020020196 and 202020020205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202020020227) 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 63 ways as a sum of consecutive naturals, for example, 48362772 + ... + 48366948.

It is an arithmetic number, because the mean of its divisors is an integer number (3114348048).

Almost surely, 2^202020020220 is an apocalyptic number.

202020020220 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 202020020220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298977412608).

202020020220 is an abundant number, since it is smaller than the sum of its proper divisors (395934804996).

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

202020020220 is a wasteful number, since it uses less digits than its factorization.

202020020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4660 (or 4658 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

Adding to 202020020220 its reverse (22020020202), we get a palindrome (224040040422).

The spelling of 202020020220 in words is "two hundred two billion, twenty million, twenty thousand, two hundred twenty".