202020222220 has 48 divisors (see below), whose sum is σ = 432447488928. Its totient is φ = 79260185600.

The previous prime is 202020222179. The next prime is 202020222221. The reversal of 202020222220 is 22222020202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 202020222194 and 202020222203.

It is not an unprimeable number, because it can be changed into a prime (202020222221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251197 + ... + 683476.

It is an arithmetic number, because the mean of its divisors is an integer number (9009322686).

Almost surely, 2^202020222220 is an apocalyptic number.

202020222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202020222220 is an abundant number, since it is smaller than the sum of its proper divisors (230427266708).

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

202020222220 is a wasteful number, since it uses less digits than its factorization.

202020222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934890 (or 934888 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 202020222220 its reverse (22222020202), we get a palindrome (224242242422).

The spelling of 202020222220 in words is "two hundred two billion, twenty million, two hundred twenty-two thousand, two hundred twenty".