110200021221 has 16 divisors (see below), whose sum is σ = 149810091200. Its totient is φ = 72042213888.

The previous prime is 110200021193. The next prime is 110200021231. The reversal of 110200021221 is 122120002011.

It is not a de Polignac number, because 110200021221 - 2⁵ = 110200021189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110200021197 and 110200021206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110200021231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1705411 + ... + 1768848.

It is an arithmetic number, because the mean of its divisors is an integer number (9363130700).

Almost surely, 2^110200021221 is an apocalyptic number.

It is an amenable number.

110200021221 is a deficient number, since it is larger than the sum of its proper divisors (39610069979).

110200021221 is a wasteful number, since it uses less digits than its factorization.

110200021221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3474468.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 110200021221 its reverse (122120002011), we get a palindrome (232320023232).

The spelling of 110200021221 in words is "one hundred ten billion, two hundred million, twenty-one thousand, two hundred twenty-one".