110220210161 has 2 divisors, whose sum is σ = 110220210162. Its totient is φ = 110220210160.

The previous prime is 110220210157. The next prime is 110220210227. The reversal of 110220210161 is 161012022011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79885369600 + 30334840561 = 282640^2 + 174169^2 .

It is an emirp because it is prime and its reverse (161012022011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 110220210161 - 2² = 110220210157 is a prime.

It is not a weakly prime, because it can be changed into another prime (110223210161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55110105080 + 55110105081.

It is an arithmetic number, because the mean of its divisors is an integer number (55110105081).

Almost surely, 2^110220210161 is an apocalyptic number.

It is an amenable number.

110220210161 is a deficient number, since it is larger than the sum of its proper divisors (1).

110220210161 is an equidigital number, since it uses as much as digits as its factorization.

110220210161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 110220210161 its reverse (161012022011), we get a palindrome (271232232172).

The spelling of 110220210161 in words is "one hundred ten billion, two hundred twenty million, two hundred ten thousand, one hundred sixty-one".