12642422219 has 16 divisors (see below), whose sum is σ = 15026841600. Its totient is φ = 10410008544.

The previous prime is 12642422207. The next prime is 12642422231. The reversal of 12642422219 is 91222424621.

12642422219 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12642422207) and next prime (12642422231).

It is a cyclic number.

It is not a de Polignac number, because 12642422219 - 2⁸ = 12642421963 is a prime.

It is a super-2 number, since 2×12642422219² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12642422269) 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 in 15 ways as a sum of consecutive naturals, for example, 288479 + ... + 329400.

It is an arithmetic number, because the mean of its divisors is an integer number (939177600).

Almost surely, 2^12642422219 is an apocalyptic number.

12642422219 is a deficient number, since it is larger than the sum of its proper divisors (2384419381).

12642422219 is an equidigital number, since it uses as much as digits as its factorization.

12642422219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618002.

The product of its digits is 27648, while the sum is 35.

The spelling of 12642422219 in words is "twelve billion, six hundred forty-two million, four hundred twenty-two thousand, two hundred nineteen".