11119279821 has 16 divisors (see below), whose sum is σ = 16115367744. Its totient is φ = 6778681344.

The previous prime is 11119279813. The next prime is 11119279837. The reversal of 11119279821 is 12897291111.

It is not a de Polignac number, because 11119279821 - 2³ = 11119279813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11119279861) 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 in 15 ways as a sum of consecutive naturals, for example, 1328116 + ... + 1336461.

It is an arithmetic number, because the mean of its divisors is an integer number (1007210484).

Almost surely, 2^11119279821 is an apocalyptic number.

It is an amenable number.

11119279821 is a deficient number, since it is larger than the sum of its proper divisors (4996087923).

11119279821 is a wasteful number, since it uses less digits than its factorization.

11119279821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2664700.

The product of its digits is 18144, while the sum is 42.

The spelling of 11119279821 in words is "eleven billion, one hundred nineteen million, two hundred seventy-nine thousand, eight hundred twenty-one".