110555221 has 12 divisors (see below), whose sum is σ = 133041420. Its totient is φ = 91492800.

The previous prime is 110555201. The next prime is 110555231. The reversal of 110555221 is 122555011.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 59074596 + 51480625 = 7686^2 + 7175^2 .

It is not a de Polignac number, because 110555221 - 2¹¹ = 110553173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110555192 and 110555201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110555201) 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, 37480 + ... + 40321.

It is an arithmetic number, because the mean of its divisors is an integer number (11086785).

Almost surely, 2^110555221 is an apocalyptic number.

It is an amenable number.

110555221 is a deficient number, since it is larger than the sum of its proper divisors (22486199).

110555221 is an equidigital number, since it uses as much as digits as its factorization.

110555221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77844 (or 77837 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 110555221 is about 10514.5242878601. The cubic root of 110555221 is about 479.9467837415.

The spelling of 110555221 in words is "one hundred ten million, five hundred fifty-five thousand, two hundred twenty-one".