202200021221100 has 144 divisors (see below), whose sum is σ = 670071110704128. Its totient is φ = 46116015874560.

The previous prime is 202200021221047. The next prime is 202200021221129. The reversal of 202200021221100 is 1122120002202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 202200021221100.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 104385732 + ... + 106305131.

It is an arithmetic number, because the mean of its divisors is an integer number (4653271602112).

Almost surely, 2^{202200021221100} is an apocalyptic number.

202200021221100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202200021221100 is an abundant number, since it is smaller than the sum of its proper divisors (467871089483028).

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

202200021221100 is a wasteful number, since it uses less digits than its factorization.

202200021221100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210691344 (or 210691337 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 202200021221100 its reverse (1122120002202), we get a palindrome (203322141223302).

The spelling of 202200021221100 in words is "two hundred two trillion, two hundred billion, twenty-one million, two hundred twenty-one thousand, one hundred".