12237279797189 has 2 divisors, whose sum is σ = 12237279797190. Its totient is φ = 12237279797188.

The previous prime is 12237279797131. The next prime is 12237279797191. The reversal of 12237279797189 is 98179797273221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12146326284964 + 90953512225 = 3485158^2 + 301585^2 .

It is an emirp because it is prime and its reverse (98179797273221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12237279797189 - 2²⁴ = 12237263019973 is a prime.

Together with 12237279797191, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12237279797489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6118639898594 + 6118639898595.

It is an arithmetic number, because the mean of its divisors is an integer number (6118639898595).

Almost surely, 2^{12237279797189} is an apocalyptic number.

It is an amenable number.

12237279797189 is a deficient number, since it is larger than the sum of its proper divisors (1).

12237279797189 is an equidigital number, since it uses as much as digits as its factorization.

12237279797189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 336063168, while the sum is 74.

The spelling of 12237279797189 in words is "twelve trillion, two hundred thirty-seven billion, two hundred seventy-nine million, seven hundred ninety-seven thousand, one hundred eighty-nine".