11021009968 has 20 divisors (see below), whose sum is σ = 22609278360. Its totient is φ = 5186357504.

The previous prime is 11021009959. The next prime is 11021009969. The reversal of 11021009968 is 86990012011.

It is a super-2 number, since 2×11021009968² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11021009969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20258938 + ... + 20259481.

It is an arithmetic number, because the mean of its divisors is an integer number (1130463918).

Almost surely, 2^11021009968 is an apocalyptic number.

It is an amenable number.

11021009968 is an abundant number, since it is smaller than the sum of its proper divisors (11588268392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11021009968 is a wasteful number, since it uses less digits than its factorization.

11021009968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40518444 (or 40518438 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 37.

The spelling of 11021009968 in words is "eleven billion, twenty-one million, nine thousand, nine hundred sixty-eight".