11002002220021 has 2 divisors, whose sum is σ = 11002002220022. Its totient is φ = 11002002220020.

The previous prime is 11002002219979. The next prime is 11002002220091. The reversal of 11002002220021 is 12002220020011.

It is a happy number.

11002002220021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5771953395121 + 5230048824900 = 2402489^2 + 2286930^2 .

It is a cyclic number.

It is not a de Polignac number, because 11002002220021 - 2⁷ = 11002002219893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11002002219983 and 11002002220010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11002002220091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5501001110010 + 5501001110011.

It is an arithmetic number, because the mean of its divisors is an integer number (5501001110011).

Almost surely, 2^{11002002220021} is an apocalyptic number.

It is an amenable number.

11002002220021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11002002220021 is an equidigital number, since it uses as much as digits as its factorization.

11002002220021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 11002002220021 its reverse (12002220020011), we get a palindrome (23004222240032).

The spelling of 11002002220021 in words is "eleven trillion, two billion, two million, two hundred twenty thousand, twenty-one".