12201001097 has 2 divisors, whose sum is σ = 12201001098. Its totient is φ = 12201001096.

The previous prime is 12201001067. The next prime is 12201001123. The reversal of 12201001097 is 79010010221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8141272441 + 4059728656 = 90229^2 + 63716^2 .

It is an emirp because it is prime and its reverse (79010010221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12201001097 - 2²² = 12196806793 is a prime.

It is not a weakly prime, because it can be changed into another prime (12201001067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100500548 + 6100500549.

It is an arithmetic number, because the mean of its divisors is an integer number (6100500549).

Almost surely, 2^12201001097 is an apocalyptic number.

It is an amenable number.

12201001097 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201001097 is an equidigital number, since it uses as much as digits as its factorization.

12201001097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 23.

The spelling of 12201001097 in words is "twelve billion, two hundred one million, one thousand, ninety-seven".