11011010221020 has 48 divisors (see below), whose sum is σ = 31547824640640. Its totient is φ = 2867984056896.

The previous prime is 11011010220967. The next prime is 11011010221039. The reversal of 11011010221020 is 2012201011011.

11011010221020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11011010220987 and 11011010221005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2133914130 + ... + 2133919289.

It is an arithmetic number, because the mean of its divisors is an integer number (657246346680).

Almost surely, 2^{11011010221020} is an apocalyptic number.

11011010221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11011010221020 is an abundant number, since it is smaller than the sum of its proper divisors (20536814419620).

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

11011010221020 is a wasteful number, since it uses less digits than its factorization.

11011010221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4267833474 (or 4267833472 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11011010221020 its reverse (2012201011011), we get a palindrome (13023211232031).

The spelling of 11011010221020 in words is "eleven trillion, eleven billion, ten million, two hundred twenty-one thousand, twenty".