11001202021 has 2 divisors, whose sum is σ = 11001202022. Its totient is φ = 11001202020.

The previous prime is 11001201983. The next prime is 11001202181. The reversal of 11001202021 is 12020210011.

11001202021 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., 10965021796 + 36180225 = 104714^2 + 6015^2 .

It is an emirp because it is prime and its reverse (12020210011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11001202021 - 2⁹ = 11001201509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11001201989 and 11001202007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11001202621) 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 as a sum of consecutive naturals, namely, 5500601010 + 5500601011.

It is an arithmetic number, because the mean of its divisors is an integer number (5500601011).

Almost surely, 2^11001202021 is an apocalyptic number.

It is an amenable number.

11001202021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11001202021 is an equidigital number, since it uses as much as digits as its factorization.

11001202021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 11001202021 its reverse (12020210011), we get a palindrome (23021412032).

The spelling of 11001202021 in words is "eleven billion, one million, two hundred two thousand, twenty-one".