110110200020221 has 4 divisors (see below), whose sum is σ = 110110436264700. Its totient is φ = 110109963775744.

The previous prime is 110110200020207. The next prime is 110110200020237. The reversal of 110110200020221 is 122020002011011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 98531928005625 + 11578272014596 = 9926325^2 + 3402686^2 .

It is a cyclic number.

It is not a de Polignac number, because 110110200020221 - 2¹⁷ = 110110199889149 is a prime.

It is a super-2 number, since 2×110110200020221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110110200020201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117421726 + ... + 118355743.

It is an arithmetic number, because the mean of its divisors is an integer number (27527609066175).

Almost surely, 2^{110110200020221} is an apocalyptic number.

It is an amenable number.

110110200020221 is a deficient number, since it is larger than the sum of its proper divisors (236244479).

110110200020221 is an equidigital number, since it uses as much as digits as its factorization.

110110200020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236244478.

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

Adding to 110110200020221 its reverse (122020002011011), we get a palindrome (232130202031232).

The spelling of 110110200020221 in words is "one hundred ten trillion, one hundred ten billion, two hundred million, twenty thousand, two hundred twenty-one".