12122028493 has 2 divisors, whose sum is σ = 12122028494. Its totient is φ = 12122028492.

The previous prime is 12122028439. The next prime is 12122028511. The reversal of 12122028493 is 39482022121.

It is a happy number.

Together with previous prime (12122028439) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12083065929 + 38962564 = 109923^2 + 6242^2 .

It is an emirp because it is prime and its reverse (39482022121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12122028493 - 2¹⁷ = 12121897421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12122028403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061014246 + 6061014247.

It is an arithmetic number, because the mean of its divisors is an integer number (6061014247).

Almost surely, 2^12122028493 is an apocalyptic number.

It is an amenable number.

12122028493 is a deficient number, since it is larger than the sum of its proper divisors (1).

12122028493 is an equidigital number, since it uses as much as digits as its factorization.

12122028493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 12122028493 in words is "twelve billion, one hundred twenty-two million, twenty-eight thousand, four hundred ninety-three".