110220221021 has 4 divisors (see below), whose sum is σ = 116703763452. Its totient is φ = 103736678592.

The previous prime is 110220221011. The next prime is 110220221039. The reversal of 110220221021 is 120122022011.

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 57142512025 + 53077708996 = 239045^2 + 230386^2 .

It is a cyclic number.

It is not a de Polignac number, because 110220221021 - 2¹⁴ = 110220204637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110220220987 and 110220221005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110220221011) 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 3 ways as a sum of consecutive naturals, for example, 3241771190 + ... + 3241771223.

It is an arithmetic number, because the mean of its divisors is an integer number (29175940863).

Almost surely, 2^110220221021 is an apocalyptic number.

It is an amenable number.

110220221021 is a deficient number, since it is larger than the sum of its proper divisors (6483542431).

110220221021 is an equidigital number, since it uses as much as digits as its factorization.

110220221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6483542430.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 110220221021 its reverse (120122022011), we get a palindrome (230342243032).

The spelling of 110220221021 in words is "one hundred ten billion, two hundred twenty million, two hundred twenty-one thousand, twenty-one".