221223201200 has 30 divisors (see below), whose sum is σ = 531488741844. Its totient is φ = 88489280320.

The previous prime is 221223201193. The next prime is 221223201217. The reversal of 221223201200 is 2102322122.

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, 276528602 + ... + 276529401.

Almost surely, 2^221223201200 is an apocalyptic number.

221223201200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221223201200 is an abundant number, since it is smaller than the sum of its proper divisors (310265540644).

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

221223201200 is a wasteful number, since it uses less digits than its factorization.

221223201200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553058021 (or 553058010 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 221223201200 its reverse (2102322122), we get a palindrome (223325523322).

The spelling of 221223201200 in words is "two hundred twenty-one billion, two hundred twenty-three million, two hundred one thousand, two hundred".