221220102200 has 24 divisors (see below), whose sum is σ = 514336738080. Its totient is φ = 88488040800.

The previous prime is 221220102167. The next prime is 221220102217. The reversal of 221220102200 is 2201022122.

221220102200 is digitally balanced in base 3, 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 5 ways as a sum of consecutive naturals, for example, 553050056 + ... + 553050455.

It is an arithmetic number, because the mean of its divisors is an integer number (21430697420).

Almost surely, 2^221220102200 is an apocalyptic number.

221220102200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221220102200 is an abundant number, since it is smaller than the sum of its proper divisors (293116635880).

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

221220102200 is a wasteful number, since it uses less digits than its factorization.

221220102200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106100527 (or 1106100518 counting only the distinct ones).

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

Adding to 221220102200 its reverse (2201022122), we get a palindrome (223421124322).

The spelling of 221220102200 in words is "two hundred twenty-one billion, two hundred twenty million, one hundred two thousand, two hundred".