11220020010161 has 2 divisors, whose sum is σ = 11220020010162. Its totient is φ = 11220020010160.

The previous prime is 11220020010097. The next prime is 11220020010163. The reversal of 11220020010161 is 16101002002211.

11220020010161 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., 9434536121761 + 1785483888400 = 3071569^2 + 1336220^2 .

It is a cyclic number.

It is not a de Polignac number, because 11220020010161 - 2⁶ = 11220020010097 is a prime.

Together with 11220020010163, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11220020010163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610010005080 + 5610010005081.

It is an arithmetic number, because the mean of its divisors is an integer number (5610010005081).

Almost surely, 2^{11220020010161} is an apocalyptic number.

It is an amenable number.

11220020010161 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220020010161 is an equidigital number, since it uses as much as digits as its factorization.

11220020010161 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 11220020010161 its reverse (16101002002211), we get a palindrome (27321022012372).

The spelling of 11220020010161 in words is "eleven trillion, two hundred twenty billion, twenty million, ten thousand, one hundred sixty-one".