12221203097 has 2 divisors, whose sum is σ = 12221203098. Its totient is φ = 12221203096.

The previous prime is 12221203087. The next prime is 12221203177. The reversal of 12221203097 is 79030212221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9576775321 + 2644427776 = 97861^2 + 51424^2 .

It is a cyclic number.

It is not a de Polignac number, because 12221203097 - 2¹⁰ = 12221202073 is a prime.

It is not a weakly prime, because it can be changed into another prime (12221203037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110601548 + 6110601549.

It is an arithmetic number, because the mean of its divisors is an integer number (6110601549).

Almost surely, 2^12221203097 is an apocalyptic number.

It is an amenable number.

12221203097 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221203097 is an equidigital number, since it uses as much as digits as its factorization.

12221203097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

The spelling of 12221203097 in words is "twelve billion, two hundred twenty-one million, two hundred three thousand, ninety-seven".