221210112200 has 192 divisors, whose sum is σ = 641843205120. Its totient is φ = 68881824000.

The previous prime is 221210112199. The next prime is 221210112217. The reversal of 221210112200 is 2211012122.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 17287805 + ... + 17300595.

It is an arithmetic number, because the mean of its divisors is an integer number (3342933360).

Almost surely, 2^221210112200 is an apocalyptic number.

221210112200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221210112200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320921602560).

221210112200 is an abundant number, since it is smaller than the sum of its proper divisors (420633092920).

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

221210112200 is a wasteful number, since it uses less digits than its factorization.

221210112200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13948 (or 13939 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221210112200 its reverse (2211012122), we get a palindrome (223421124322).

The spelling of 221210112200 in words is "two hundred twenty-one billion, two hundred ten million, one hundred twelve thousand, two hundred".