10221220200220 has 24 divisors (see below), whose sum is σ = 21736265745600. Its totient is φ = 4036735065792.

The previous prime is 10221220200203. The next prime is 10221220200313. The reversal of 10221220200220 is 2200202212201.

It is a junction number, because it is equal to n+sod(n) for n = 10221220200194 and 10221220200203.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3234561775 + ... + 3234564934.

It is an arithmetic number, because the mean of its divisors is an integer number (905677739400).

Almost surely, 2^{10221220200220} is an apocalyptic number.

10221220200220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221220200220 is an abundant number, since it is smaller than the sum of its proper divisors (11515045545380).

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

10221220200220 is a wasteful number, since it uses less digits than its factorization.

10221220200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6469126797 (or 6469126795 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 10221220200220 its reverse (2200202212201), we get a palindrome (12421422412421).

The spelling of 10221220200220 in words is "ten trillion, two hundred twenty-one billion, two hundred twenty million, two hundred thousand, two hundred twenty".