2200201221161 has 2 divisors, whose sum is σ = 2200201221162. Its totient is φ = 2200201221160.

The previous prime is 2200201221091. The next prime is 2200201221173. The reversal of 2200201221161 is 1611221020022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1399299726400 + 800901494761 = 1182920^2 + 894931^2 .

It is a cyclic number.

It is not a de Polignac number, because 2200201221161 - 2³⁴ = 2183021351977 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 (2200201221191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100100610580 + 1100100610581.

It is an arithmetic number, because the mean of its divisors is an integer number (1100100610581).

Almost surely, 2^{2200201221161} is an apocalyptic number.

It is an amenable number.

2200201221161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2200201221161 is an equidigital number, since it uses as much as digits as its factorization.

2200201221161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 2200201221161 its reverse (1611221020022), we get a palindrome (3811422241183).

The spelling of 2200201221161 in words is "two trillion, two hundred billion, two hundred one million, two hundred twenty-one thousand, one hundred sixty-one".