110000220221 has 2 divisors, whose sum is σ = 110000220222. Its totient is φ = 110000220220.

The previous prime is 110000220193. The next prime is 110000220269. The reversal of 110000220221 is 122022000011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97347120025 + 12653100196 = 312005^2 + 112486^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110000220221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110000220721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55000110110 + 55000110111.

It is an arithmetic number, because the mean of its divisors is an integer number (55000110111).

Almost surely, 2^110000220221 is an apocalyptic number.

It is an amenable number.

110000220221 is a deficient number, since it is larger than the sum of its proper divisors (1).

110000220221 is an equidigital number, since it uses as much as digits as its factorization.

110000220221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 110000220221 its reverse (122022000011), we get a palindrome (232022220232).

The spelling of 110000220221 in words is "one hundred ten billion, two hundred twenty thousand, two hundred twenty-one".