221101112200 has 48 divisors (see below), whose sum is σ = 521732656080. Its totient is φ = 87120432960.

The previous prime is 221101112189. The next prime is 221101112231. The reversal of 221101112200 is 2211101122.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8236642 + ... + 8263441.

It is an arithmetic number, because the mean of its divisors is an integer number (10869430335).

Almost surely, 2^221101112200 is an apocalyptic number.

221101112200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221101112200 is an abundant number, since it is smaller than the sum of its proper divisors (300631543880).

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

221101112200 is a wasteful number, since it uses less digits than its factorization.

221101112200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16500166 (or 16500157 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 221101112200 its reverse (2211101122), we get a palindrome (223312213322).

The spelling of 221101112200 in words is "two hundred twenty-one billion, one hundred one million, one hundred twelve thousand, two hundred".