12225439847 has 2 divisors, whose sum is σ = 12225439848. Its totient is φ = 12225439846.

The previous prime is 12225439747. The next prime is 12225439861. The reversal of 12225439847 is 74893452221.

12225439847 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12225439847 - 2¹² = 12225435751 is a prime.

It is a super-2 number, since 2×12225439847² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12225439747) 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, 6112719923 + 6112719924.

It is an arithmetic number, because the mean of its divisors is an integer number (6112719924).

Almost surely, 2^12225439847 is an apocalyptic number.

12225439847 is a deficient number, since it is larger than the sum of its proper divisors (1).

12225439847 is an equidigital number, since it uses as much as digits as its factorization.

12225439847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 967680, while the sum is 47.

The spelling of 12225439847 in words is "twelve billion, two hundred twenty-five million, four hundred thirty-nine thousand, eight hundred forty-seven".