201221020202200 has 48 divisors (see below), whose sum is σ = 469179384660000. Its totient is φ = 80257782241920.

The previous prime is 201221020202161. The next prime is 201221020202243. The reversal of 201221020202200 is 2202020122102.

201221020202200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1441341520 + ... + 1441481119.

It is an arithmetic number, because the mean of its divisors is an integer number (9774570513750).

Almost surely, 2^{201221020202200} is an apocalyptic number.

201221020202200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201221020202200 is an abundant number, since it is smaller than the sum of its proper divisors (267958364457800).

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

201221020202200 is a wasteful number, since it uses less digits than its factorization.

201221020202200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2882823004 (or 2882822995 counting only the distinct ones).

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

Adding to 201221020202200 its reverse (2202020122102), we get a palindrome (203423040324302).

The spelling of 201221020202200 in words is "two hundred one trillion, two hundred twenty-one billion, twenty million, two hundred two thousand, two hundred".