11021110020 has 96 divisors (see below), whose sum is σ = 34342304640. Its totient is φ = 2934299520.

The previous prime is 11021110019. The next prime is 11021110109. The reversal of 11021110020 is 2001112011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 11021109984 and 11021110011.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 331350 + ... + 363090.

It is an arithmetic number, because the mean of its divisors is an integer number (357732340).

Almost surely, 2^11021110020 is an apocalyptic number.

11021110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11021110020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17171152320).

11021110020 is an abundant number, since it is smaller than the sum of its proper divisors (23321194620).

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

11021110020 is a wasteful number, since it uses less digits than its factorization.

11021110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32402 (or 32394 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 11021110020 its reverse (2001112011), we get a palindrome (13022222031).

The spelling of 11021110020 in words is "eleven billion, twenty-one million, one hundred ten thousand, twenty".