11222122200161 has 2 divisors, whose sum is σ = 11222122200162. Its totient is φ = 11222122200160.

The previous prime is 11222122200097. The next prime is 11222122200269. The reversal of 11222122200161 is 16100222122211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11222098003600 + 24196561 = 3349940^2 + 4919^2 .

It is a cyclic number.

It is not a de Polignac number, because 11222122200161 - 2⁶ = 11222122200097 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11222122206161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611061100080 + 5611061100081.

It is an arithmetic number, because the mean of its divisors is an integer number (5611061100081).

Almost surely, 2^{11222122200161} is an apocalyptic number.

It is an amenable number.

11222122200161 is a deficient number, since it is larger than the sum of its proper divisors (1).

11222122200161 is an equidigital number, since it uses as much as digits as its factorization.

11222122200161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 11222122200161 its reverse (16100222122211), we get a palindrome (27322344322372).

The spelling of 11222122200161 in words is "eleven trillion, two hundred twenty-two billion, one hundred twenty-two million, two hundred thousand, one hundred sixty-one".