11002221222020 has 36 divisors (see below), whose sum is σ = 26876854701900. Its totient is φ = 3772190132928.

The previous prime is 11002221221983. The next prime is 11002221222079. The reversal of 11002221222020 is 2022212220011.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1845533118016 + 9156688104004 = 1358504^2 + 3026002^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11002221222020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5613377195 + ... + 5613379154.

It is an arithmetic number, because the mean of its divisors is an integer number (746579297275).

Almost surely, 2^{11002221222020} is an apocalyptic number.

11002221222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11002221222020 is an abundant number, since it is smaller than the sum of its proper divisors (15874633479880).

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

11002221222020 is a wasteful number, since it uses less digits than its factorization.

11002221222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11226756372 (or 11226756363 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 11002221222020 its reverse (2022212220011), we get a palindrome (13024433442031).

The spelling of 11002221222020 in words is "eleven trillion, two billion, two hundred twenty-one million, two hundred twenty-two thousand, twenty".