12201123230237 has 2 divisors, whose sum is σ = 12201123230238. Its totient is φ = 12201123230236.

The previous prime is 12201123230201. The next prime is 12201123230249. The reversal of 12201123230237 is 73203232110221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11104183302436 + 1096939927801 = 3332294^2 + 1047349^2 .

It is an emirp because it is prime and its reverse (73203232110221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12201123230237 - 2⁶ = 12201123230173 is a prime.

It is a super-2 number, since 2×12201123230237² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12201123230297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100561615118 + 6100561615119.

It is an arithmetic number, because the mean of its divisors is an integer number (6100561615119).

Almost surely, 2^{12201123230237} is an apocalyptic number.

It is an amenable number.

12201123230237 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201123230237 is an equidigital number, since it uses as much as digits as its factorization.

12201123230237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 29.

Adding to 12201123230237 its reverse (73203232110221), we get a palindrome (85404355340458).

The spelling of 12201123230237 in words is "twelve trillion, two hundred one billion, one hundred twenty-three million, two hundred thirty thousand, two hundred thirty-seven".