11021111008 has 24 divisors (see below), whose sum is σ = 21712439448. Its totient is φ = 5506840704.

The previous prime is 11021110957. The next prime is 11021111009. The reversal of 11021111008 is 80011112011.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 11021110982 and 11021111000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021111009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67566 + ... + 163117.

It is an arithmetic number, because the mean of its divisors is an integer number (904684977).

Almost surely, 2^11021111008 is an apocalyptic number.

It is an amenable number.

11021111008 is a deficient number, since it is larger than the sum of its proper divisors (10691328440).

11021111008 is a wasteful number, since it uses less digits than its factorization.

11021111008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232186 (or 232178 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 11021111008 its reverse (80011112011), we get a palindrome (91032223019).

The spelling of 11021111008 in words is "eleven billion, twenty-one million, one hundred eleven thousand, eight".