12002279 has 2 divisors, whose sum is σ = 12002280. Its totient is φ = 12002278.

The previous prime is 12002261. The next prime is 12002321. The reversal of 12002279 is 97220021.

12002279 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (97220021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12002279 - 2¹² = 11998183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12002209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6001139 + 6001140.

It is an arithmetic number, because the mean of its divisors is an integer number (6001140).

Almost surely, 2^12002279 is an apocalyptic number.

12002279 is a deficient number, since it is larger than the sum of its proper divisors (1).

12002279 is an equidigital number, since it uses as much as digits as its factorization.

12002279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 12002279 is about 3464.4305448371. The cubic root of 12002279 is about 228.9573409475.

The spelling of 12002279 in words is "twelve million, two thousand, two hundred seventy-nine".