12197214437 has 2 divisors, whose sum is σ = 12197214438. Its totient is φ = 12197214436.

The previous prime is 12197214427. The next prime is 12197214473. The reversal of 12197214437 is 73441279121.

12197214437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (12197214473) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11716114081 + 481100356 = 108241^2 + 21934^2 .

It is a cyclic number.

It is not a de Polignac number, because 12197214437 - 2⁸ = 12197214181 is a prime.

It is a super-2 number, since 2×12197214437² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12197214394 and 12197214403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12197214427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6098607218 + 6098607219.

It is an arithmetic number, because the mean of its divisors is an integer number (6098607219).

Almost surely, 2^12197214437 is an apocalyptic number.

It is an amenable number.

12197214437 is a deficient number, since it is larger than the sum of its proper divisors (1).

12197214437 is an equidigital number, since it uses as much as digits as its factorization.

12197214437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 41.

The spelling of 12197214437 in words is "twelve billion, one hundred ninety-seven million, two hundred fourteen thousand, four hundred thirty-seven".