12642226442999 has 4 divisors (see below), whose sum is σ = 12642342426336. Its totient is φ = 12642110459664.

The previous prime is 12642226442899. The next prime is 12642226443013. The reversal of 12642226442999 is 99924462224621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12642226442999 - 2⁸ = 12642226442743 is a prime.

It is a super-2 number, since 2×12642226442999² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12642226442899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57828014 + ... + 58046219.

It is an arithmetic number, because the mean of its divisors is an integer number (3160585606584).

Almost surely, 2^{12642226442999} is an apocalyptic number.

12642226442999 is a deficient number, since it is larger than the sum of its proper divisors (115983337).

12642226442999 is a wasteful number, since it uses less digits than its factorization.

12642226442999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115983336.

The product of its digits is 53747712, while the sum is 62.

The spelling of 12642226442999 in words is "twelve trillion, six hundred forty-two billion, two hundred twenty-six million, four hundred forty-two thousand, nine hundred ninety-nine".