11209222979 has 2 divisors, whose sum is σ = 11209222980. Its totient is φ = 11209222978.

The previous prime is 11209222967. The next prime is 11209222987. The reversal of 11209222979 is 97922290211.

It is a happy number.

11209222979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11209222979 - 2⁴ = 11209222963 is a prime.

It is not a weakly prime, because it can be changed into another prime (11209222939) 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, 5604611489 + 5604611490.

It is an arithmetic number, because the mean of its divisors is an integer number (5604611490).

Almost surely, 2^11209222979 is an apocalyptic number.

11209222979 is a deficient number, since it is larger than the sum of its proper divisors (1).

11209222979 is an equidigital number, since it uses as much as digits as its factorization.

11209222979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 44.

The spelling of 11209222979 in words is "eleven billion, two hundred nine million, two hundred twenty-two thousand, nine hundred seventy-nine".