202221200010020 has 12 divisors (see below), whose sum is σ = 424664520021084. Its totient is φ = 80888480004000.

The previous prime is 202221200010013. The next prime is 202221200010061. The reversal of 202221200010020 is 20010002122202.

It can be written as a sum of positive squares in 2 ways, for example, as 96914731542784 + 105306468467236 = 9844528^2 + 10261894^2 .

It is a junction number, because it is equal to n+sod(n) for n = 202221200009977 and 202221200010004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5055530000231 + ... + 5055530000270.

It is an arithmetic number, because the mean of its divisors is an integer number (35388710001757).

Almost surely, 2^{202221200010020} is an apocalyptic number.

202221200010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202221200010020 is an abundant number, since it is smaller than the sum of its proper divisors (222443320011064).

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

202221200010020 is a wasteful number, since it uses less digits than its factorization.

202221200010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10111060000510 (or 10111060000508 counting only the distinct ones).

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

Adding to 202221200010020 its reverse (20010002122202), we get a palindrome (222231202132222).

The spelling of 202221200010020 in words is "two hundred two trillion, two hundred twenty-one billion, two hundred million, ten thousand, twenty".