110031221 has 8 divisors (see below), whose sum is σ = 112034520. Its totient is φ = 108041472.

The previous prime is 110031193. The next prime is 110031227. The reversal of 110031221 is 122130011.

It can be written as a sum of positive squares in 4 ways, for example, as 12100 + 110019121 = 110^2 + 10489^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 110031221 - 2²⁶ = 42922357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110031227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13775 + ... + 20243.

It is an arithmetic number, because the mean of its divisors is an integer number (14004315).

Almost surely, 2^110031221 is an apocalyptic number.

It is an amenable number.

110031221 is a deficient number, since it is larger than the sum of its proper divisors (2003299).

110031221 is an equidigital number, since it uses as much as digits as its factorization.

110031221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6775.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 110031221 is about 10489.5767788791. The cubic root of 110031221 is about 479.1873126059.

Adding to 110031221 its reverse (122130011), we get a palindrome (232161232).

The spelling of 110031221 in words is "one hundred ten million, thirty-one thousand, two hundred twenty-one".