11002201020 has 72 divisors (see below), whose sum is σ = 34149491376. Its totient is φ = 2865687552.

The previous prime is 11002201019. The next prime is 11002201027. The reversal of 11002201020 is 2010220011.

11002201020 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 (9).

It is a junction number, because it is equal to n+sod(n) for n = 11002200993 and 11002201011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11002201027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 702997 + ... + 718476.

Almost surely, 2^11002201020 is an apocalyptic number.

11002201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11002201020 is an abundant number, since it is smaller than the sum of its proper divisors (23147290356).

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

11002201020 is a wasteful number, since it uses less digits than its factorization.

11002201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421531 (or 1421526 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 11002201020 its reverse (2010220011), we get a palindrome (13012421031).

The spelling of 11002201020 in words is "eleven billion, two million, two hundred one thousand, twenty".