11210110020 has 84 divisors (see below), whose sum is σ = 35295746220. Its totient is φ = 2989358784.

The previous prime is 11210110007. The next prime is 11210110057. The reversal of 11210110020 is 2001101211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1635878916 + 9574231104 = 40446^2 + 97848^2 .

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 = 11210109984 and 11210110011.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 369855 + ... + 399014.

It is an arithmetic number, because the mean of its divisors is an integer number (420187455).

Almost surely, 2^11210110020 is an apocalyptic number.

11210110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11210110020 is an abundant number, since it is smaller than the sum of its proper divisors (24085636200).

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

11210110020 is an equidigital number, since it uses as much as digits as its factorization.

11210110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768896 (or 768879 counting only the distinct ones).

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

Adding to 11210110020 its reverse (2001101211), we get a palindrome (13211211231).

The spelling of 11210110020 in words is "eleven billion, two hundred ten million, one hundred ten thousand, twenty".