202010020021220 has 12 divisors (see below), whose sum is σ = 424221042044604. Its totient is φ = 80804008008480.

The previous prime is 202010020021217. The next prime is 202010020021223. The reversal of 202010020021220 is 22120020010202.

It is an interprime number because it is at equal distance from previous prime (202010020021217) and next prime (202010020021223).

It can be written as a sum of positive squares in 2 ways, for example, as 103252098980416 + 98757921040804 = 10161304^2 + 9937702^2 .

It is a super-3 number, since 3×202010020021220³ (a number of 44 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202010020021195 and 202010020021204.

It is not an unprimeable number, because it can be changed into a prime (202010020021223) 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, 5050250500511 + ... + 5050250500550.

It is an arithmetic number, because the mean of its divisors is an integer number (35351753503717).

Almost surely, 2^{202010020021220} is an apocalyptic number.

202010020021220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202010020021220 is an abundant number, since it is smaller than the sum of its proper divisors (222211022023384).

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

202010020021220 is a wasteful number, since it uses less digits than its factorization.

202010020021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10100501001070 (or 10100501001068 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 202010020021220 its reverse (22120020010202), we get a palindrome (224130040031422).

The spelling of 202010020021220 in words is "two hundred two trillion, ten billion, twenty million, twenty-one thousand, two hundred twenty".