12201210097 has 4 divisors (see below), whose sum is σ = 12918928356. Its totient is φ = 11483491840.

The previous prime is 12201210079. The next prime is 12201210103. The reversal of 12201210097 is 79001210221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6755360481 + 5445849616 = 82191^2 + 73796^2 .

It is a de Polignac number, because none of the positive numbers 2^k-12201210097 is a prime.

It is a super-2 number, since 2×12201210097² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12201210067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 358859104 + ... + 358859137.

It is an arithmetic number, because the mean of its divisors is an integer number (3229732089).

Almost surely, 2^12201210097 is an apocalyptic number.

12201210097 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12201210097 is a deficient number, since it is larger than the sum of its proper divisors (717718259).

12201210097 is an equidigital number, since it uses as much as digits as its factorization.

12201210097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717718258.

The product of its (nonzero) digits is 504, while the sum is 25.

The spelling of 12201210097 in words is "twelve billion, two hundred one million, two hundred ten thousand, ninety-seven".