221112110200221 has 32 divisors (see below), whose sum is σ = 330764339360000. Its totient is φ = 145972285242624.

The previous prime is 221112110200207. The next prime is 221112110200391. The reversal of 221112110200221 is 122002011211122.

221112110200221 is a `hidden beast` number, since 2 + 21 + 11 + 211 + 0 + 200 + 221 = 666.

221112110200221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 221112110200221 - 2³³ = 221103520265629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221112110200194 and 221112110200203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221112110201221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87323865 + ... + 89820273.

It is an arithmetic number, because the mean of its divisors is an integer number (10336385605000).

Almost surely, 2^{221112110200221} is an apocalyptic number.

It is an amenable number.

221112110200221 is a deficient number, since it is larger than the sum of its proper divisors (109652229159779).

221112110200221 is a wasteful number, since it uses less digits than its factorization.

221112110200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2528370 (or 2528364 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 221112110200221 its reverse (122002011211122), we get a palindrome (343114121411343).

The spelling of 221112110200221 in words is "two hundred twenty-one trillion, one hundred twelve billion, one hundred ten million, two hundred thousand, two hundred twenty-one".