11000221279 has 2 divisors, whose sum is σ = 11000221280. Its totient is φ = 11000221278.

The previous prime is 11000221277. The next prime is 11000221313. The reversal of 11000221279 is 97212200011.

It is a weak prime.

It is an emirp because it is prime and its reverse (97212200011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11000221279 - 2¹ = 11000221277 is a prime.

Together with 11000221277, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11000221277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500110639 + 5500110640.

It is an arithmetic number, because the mean of its divisors is an integer number (5500110640).

Almost surely, 2^11000221279 is an apocalyptic number.

11000221279 is a deficient number, since it is larger than the sum of its proper divisors (1).

11000221279 is an equidigital number, since it uses as much as digits as its factorization.

11000221279 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 25.

The spelling of 11000221279 in words is "eleven billion, two hundred twenty-one thousand, two hundred seventy-nine".