2206221600161 has 2 divisors, whose sum is σ = 2206221600162. Its totient is φ = 2206221600160.

The previous prime is 2206221600131. The next prime is 2206221600181. The reversal of 2206221600161 is 1610061226022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1839644632225 + 366576967936 = 1356335^2 + 605456^2 .

It is a cyclic number.

It is not a de Polignac number, because 2206221600161 - 2²² = 2206217405857 is a prime.

It is not a weakly prime, because it can be changed into another prime (2206221600131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1103110800080 + 1103110800081.

It is an arithmetic number, because the mean of its divisors is an integer number (1103110800081).

Almost surely, 2^{2206221600161} is an apocalyptic number.

It is an amenable number.

2206221600161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2206221600161 is an equidigital number, since it uses as much as digits as its factorization.

2206221600161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 2206221600161 its reverse (1610061226022), we get a palindrome (3816282826183).

The spelling of 2206221600161 in words is "two trillion, two hundred six billion, two hundred twenty-one million, six hundred thousand, one hundred sixty-one".