12001223012279 has 8 divisors (see below), whose sum is σ = 12335870579472. Its totient is φ = 11670583200640.

The previous prime is 12001223012237. The next prime is 12001223012281. The reversal of 12001223012279 is 97221032210021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12001223012279 - 2²⁴ = 12001206235063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001223012209) 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 in 7 ways as a sum of consecutive naturals, for example, 1001932817 + ... + 1001944794.

It is an arithmetic number, because the mean of its divisors is an integer number (1541983822434).

Almost surely, 2^{12001223012279} is an apocalyptic number.

12001223012279 is a deficient number, since it is larger than the sum of its proper divisors (334647567193).

12001223012279 is a wasteful number, since it uses less digits than its factorization.

12001223012279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2003877777.

The product of its (nonzero) digits is 6048, while the sum is 32.

The spelling of 12001223012279 in words is "twelve trillion, one billion, two hundred twenty-three million, twelve thousand, two hundred seventy-nine".