20122203161 has 2 divisors, whose sum is σ = 20122203162. Its totient is φ = 20122203160.

The previous prime is 20122203113. The next prime is 20122203193. The reversal of 20122203161 is 16130222102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14389441936 + 5732761225 = 119956^2 + 75715^2 .

It is a cyclic number.

It is not a de Polignac number, because 20122203161 - 2⁶ = 20122203097 is a prime.

It is not a weakly prime, because it can be changed into another prime (20122202161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061101580 + 10061101581.

It is an arithmetic number, because the mean of its divisors is an integer number (10061101581).

Almost surely, 2^20122203161 is an apocalyptic number.

It is an amenable number.

20122203161 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122203161 is an equidigital number, since it uses as much as digits as its factorization.

20122203161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 20122203161 its reverse (16130222102), we get a palindrome (36252425263).

The spelling of 20122203161 in words is "twenty billion, one hundred twenty-two million, two hundred three thousand, one hundred sixty-one".