12205938097 has 2 divisors, whose sum is σ = 12205938098. Its totient is φ = 12205938096.

The previous prime is 12205938079. The next prime is 12205938119. The reversal of 12205938097 is 79083950221.

Together with previous prime (12205938079) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10176976161 + 2028961936 = 100881^2 + 45044^2 .

It is a cyclic number.

It is not a de Polignac number, because 12205938097 - 2¹⁵ = 12205905329 is a prime.

It is not a weakly prime, because it can be changed into another prime (12205938037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6102969048 + 6102969049.

It is an arithmetic number, because the mean of its divisors is an integer number (6102969049).

Almost surely, 2^12205938097 is an apocalyptic number.

It is an amenable number.

12205938097 is a deficient number, since it is larger than the sum of its proper divisors (1).

12205938097 is an equidigital number, since it uses as much as digits as its factorization.

12205938097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 46.

The spelling of 12205938097 in words is "twelve billion, two hundred five million, nine hundred thirty-eight thousand, ninety-seven".