11891208922 has 16 divisors (see below), whose sum is σ = 17890236000. Its totient is φ = 5927821488.

The previous prime is 11891208907. The next prime is 11891208971. The reversal of 11891208922 is 22980219811.

11891208922 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1109433 + ... + 1120099.

It is an arithmetic number, because the mean of its divisors is an integer number (1118139750).

Almost surely, 2^11891208922 is an apocalyptic number.

11891208922 is a deficient number, since it is larger than the sum of its proper divisors (5999027078).

11891208922 is a wasteful number, since it uses less digits than its factorization.

11891208922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12285.

The product of its (nonzero) digits is 41472, while the sum is 43.

The spelling of 11891208922 in words is "eleven billion, eight hundred ninety-one million, two hundred eight thousand, nine hundred twenty-two".