110000221 has 2 divisors, whose sum is σ = 110000222. Its totient is φ = 110000220.

The previous prime is 110000207. The next prime is 110000239. The reversal of 110000221 is 122000011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74132100 + 35868121 = 8610^2 + 5989^2 .

It is a cyclic number.

It is not a de Polignac number, because 110000221 - 2⁹ = 109999709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110000201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55000110 + 55000111.

It is an arithmetic number, because the mean of its divisors is an integer number (55000111).

Almost surely, 2^110000221 is an apocalyptic number.

It is an amenable number.

110000221 is a deficient number, since it is larger than the sum of its proper divisors (1).

110000221 is an equidigital number, since it uses as much as digits as its factorization.

110000221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 110000221 is about 10488.0990174578. The cubic root of 110000221 is about 479.1423065860.

Adding to 110000221 its reverse (122000011), we get a palindrome (232000232).

The spelling of 110000221 in words is "one hundred ten million, two hundred twenty-one", and thus it is an aban number.