221103110200221 has 12 divisors (see below), whose sum is σ = 320336026732800. Its totient is φ = 146956749980040.

The previous prime is 221103110200213. The next prime is 221103110200237. The reversal of 221103110200221 is 122002011301122.

221103110200221 is a `hidden beast` number, since 2 + 2 + 110 + 311 + 0 + 20 + 0 + 221 = 666.

It is not a de Polignac number, because 221103110200221 - 2³ = 221103110200213 is a prime.

It is a super-2 number, since 2×221103110200221² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 221103110200194 and 221103110200203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221103110200121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37110287421 + ... + 37110293378.

It is an arithmetic number, because the mean of its divisors is an integer number (26694668894400).

Almost surely, 2^{221103110200221} is an apocalyptic number.

It is an amenable number.

221103110200221 is a deficient number, since it is larger than the sum of its proper divisors (99232916532579).

221103110200221 is a wasteful number, since it uses less digits than its factorization.

221103110200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74220581136 (or 74220581133 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 221103110200221 its reverse (122002011301122), we get a palindrome (343105121501343).

The spelling of 221103110200221 in words is "two hundred twenty-one trillion, one hundred three billion, one hundred ten million, two hundred thousand, two hundred twenty-one".