202022221220 has 12 divisors (see below), whose sum is σ = 424246664604. Its totient is φ = 80808888480.

The previous prime is 202022221199. The next prime is 202022221223. The reversal of 202022221220 is 22122220202.

It can be written as a sum of positive squares in 2 ways, for example, as 60110290276 + 141911930944 = 245174^2 + 376712^2 .

It is not an unprimeable number, because it can be changed into a prime (202022221223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5050555511 + ... + 5050555550.

It is an arithmetic number, because the mean of its divisors is an integer number (35353888717).

Almost surely, 2^202022221220 is an apocalyptic number.

202022221220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202022221220 is an abundant number, since it is smaller than the sum of its proper divisors (222224443384).

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

202022221220 is a wasteful number, since it uses less digits than its factorization.

202022221220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10101111070 (or 10101111068 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 202022221220 its reverse (22122220202), we get a palindrome (224144441422).

It can be divided in two parts, 20202 and 2221220, that added together give a palindrome (2241422).

The spelling of 202022221220 in words is "two hundred two billion, twenty-two million, two hundred twenty-one thousand, two hundred twenty".