11020211020 has 96 divisors (see below), whose sum is σ = 28760030208. Its totient is φ = 3453795072.

The previous prime is 11020210979. The next prime is 11020211021. The reversal of 11020211020 is 2011202011.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 11020210988 and 11020211006.

It is not an unprimeable number, because it can be changed into a prime (11020211021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158067 + ... + 216853.

It is an arithmetic number, because the mean of its divisors is an integer number (299583648).

Almost surely, 2^11020211020 is an apocalyptic number.

11020211020 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 11020211020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14380015104).

11020211020 is an abundant number, since it is smaller than the sum of its proper divisors (17739819188).

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

11020211020 is a wasteful number, since it uses less digits than its factorization.

11020211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58919 (or 58917 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 11020211020 its reverse (2011202011), we get a palindrome (13031413031).

Subtracting from 11020211020 its reverse (2011202011), we obtain a palindrome (9009009009).

The spelling of 11020211020 in words is "eleven billion, twenty million, two hundred eleven thousand, twenty".