221233230200 has 24 divisors (see below), whose sum is σ = 514367260680. Its totient is φ = 88493292000.

The previous prime is 221233230173. The next prime is 221233230221. The reversal of 221233230200 is 2032332122.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 553082876 + ... + 553083275.

It is an arithmetic number, because the mean of its divisors is an integer number (21431969195).

Almost surely, 2^221233230200 is an apocalyptic number.

221233230200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221233230200 is an abundant number, since it is smaller than the sum of its proper divisors (293134030480).

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

221233230200 is a wasteful number, since it uses less digits than its factorization.

221233230200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106166167 (or 1106166158 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 221233230200 its reverse (2032332122), we get a palindrome (223265562322).

The spelling of 221233230200 in words is "two hundred twenty-one billion, two hundred thirty-three million, two hundred thirty thousand, two hundred".