12213321427 has 2 divisors, whose sum is σ = 12213321428. Its totient is φ = 12213321426.

The previous prime is 12213321409. The next prime is 12213321473. The reversal of 12213321427 is 72412331221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12213321427 - 2³¹ = 10065837779 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12213321395 and 12213321404.

It is not a weakly prime, because it can be changed into another prime (12213321227) 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, 6106660713 + 6106660714.

It is an arithmetic number, because the mean of its divisors is an integer number (6106660714).

Almost surely, 2^12213321427 is an apocalyptic number.

12213321427 is a deficient number, since it is larger than the sum of its proper divisors (1).

12213321427 is an equidigital number, since it uses as much as digits as its factorization.

12213321427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 28.

Adding to 12213321427 its reverse (72412331221), we get a palindrome (84625652648).

The spelling of 12213321427 in words is "twelve billion, two hundred thirteen million, three hundred twenty-one thousand, four hundred twenty-seven".