10440221279 has 2 divisors, whose sum is σ = 10440221280. Its totient is φ = 10440221278.

The previous prime is 10440221269. The next prime is 10440221293. The reversal of 10440221279 is 97212204401.

It is a happy number.

10440221279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10440221279 - 2²⁸ = 10171785823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10440221269) 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, 5220110639 + 5220110640.

It is an arithmetic number, because the mean of its divisors is an integer number (5220110640).

Almost surely, 2^10440221279 is an apocalyptic number.

10440221279 is a deficient number, since it is larger than the sum of its proper divisors (1).

10440221279 is an equidigital number, since it uses as much as digits as its factorization.

10440221279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 32.

The spelling of 10440221279 in words is "ten billion, four hundred forty million, two hundred twenty-one thousand, two hundred seventy-nine".