221210201200 has 60 divisors (see below), whose sum is σ = 536160781728. Its totient is φ = 87701017600.

The previous prime is 221210201029. The next prime is 221210201213. The reversal of 221210201200 is 2102012122.

It is a happy number.

221210201200 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×221210201200² (a number of 23 digits) contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 2401816 + ... + 2492215.

Almost surely, 2^221210201200 is an apocalyptic number.

221210201200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221210201200 is an abundant number, since it is smaller than the sum of its proper divisors (314950580528).

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

221210201200 is a wasteful number, since it uses less digits than its factorization.

221210201200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4894162 (or 4894151 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 221210201200 its reverse (2102012122), we get a palindrome (223312213322).

The spelling of 221210201200 in words is "two hundred twenty-one billion, two hundred ten million, two hundred one thousand, two hundred".