11002221020121 has 32 divisors (see below), whose sum is σ = 14917448312832. Its totient is φ = 7212004231680.

The previous prime is 11002221020113. The next prime is 11002221020129. The reversal of 11002221020121 is 12102012220011.

11002221020121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11002221020113) and next prime (11002221020129).

It is not a de Polignac number, because 11002221020121 - 2³ = 11002221020113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11002221020121.

It is not an unprimeable number, because it can be changed into a prime (11002221020129) 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, 51822441 + ... + 52034313.

It is an arithmetic number, because the mean of its divisors is an integer number (466170259776).

Almost surely, 2^{11002221020121} is an apocalyptic number.

It is an amenable number.

11002221020121 is a deficient number, since it is larger than the sum of its proper divisors (3915227292711).

11002221020121 is a wasteful number, since it uses less digits than its factorization.

11002221020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213173.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11002221020121 its reverse (12102012220011), we get a palindrome (23104233240132).

The spelling of 11002221020121 in words is "eleven trillion, two billion, two hundred twenty-one million, twenty thousand, one hundred twenty-one".