11221460161 has 2 divisors, whose sum is σ = 11221460162. Its totient is φ = 11221460160.

The previous prime is 11221460149. The next prime is 11221460171. The reversal of 11221460161 is 16106412211.

11221460161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6329157136 + 4892303025 = 79556^2 + 69945^2 .

It is an emirp because it is prime and its reverse (16106412211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11221460161 - 2¹⁷ = 11221329089 is a prime.

It is not a weakly prime, because it can be changed into another prime (11221460111) 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, 5610730080 + 5610730081.

It is an arithmetic number, because the mean of its divisors is an integer number (5610730081).

Almost surely, 2^11221460161 is an apocalyptic number.

It is an amenable number.

11221460161 is a deficient number, since it is larger than the sum of its proper divisors (1).

11221460161 is an equidigital number, since it uses as much as digits as its factorization.

11221460161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

Adding to 11221460161 its reverse (16106412211), we get a palindrome (27327872372).

The spelling of 11221460161 in words is "eleven billion, two hundred twenty-one million, four hundred sixty thousand, one hundred sixty-one".