12201102161 has 2 divisors, whose sum is σ = 12201102162. Its totient is φ = 12201102160.

The previous prime is 12201102131. The next prime is 12201102167. The reversal of 12201102161 is 16120110221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11999887936 + 201214225 = 109544^2 + 14185^2 .

It is a cyclic number.

It is not a de Polignac number, because 12201102161 - 2⁶ = 12201102097 is a prime.

It is not a weakly prime, because it can be changed into another prime (12201102167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100551080 + 6100551081.

It is an arithmetic number, because the mean of its divisors is an integer number (6100551081).

Almost surely, 2^12201102161 is an apocalyptic number.

It is an amenable number.

12201102161 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201102161 is an equidigital number, since it uses as much as digits as its factorization.

12201102161 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 12201102161 its reverse (16120110221), we get a palindrome (28321212382).

The spelling of 12201102161 in words is "twelve billion, two hundred one million, one hundred two thousand, one hundred sixty-one".