11102002210021 has 2 divisors, whose sum is σ = 11102002210022. Its totient is φ = 11102002210020.

The previous prime is 11102002209917. The next prime is 11102002210063. The reversal of 11102002210021 is 12001220020111.

11102002210021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9049802707521 + 2052199502500 = 3008289^2 + 1432550^2 .

It is a cyclic number.

It is not a de Polignac number, because 11102002210021 - 2⁹ = 11102002209509 is a prime.

It is a super-2 number, since 2×11102002210021² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11102002209983 and 11102002210010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11102002214021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5551001105010 + 5551001105011.

It is an arithmetic number, because the mean of its divisors is an integer number (5551001105011).

Almost surely, 2^{11102002210021} is an apocalyptic number.

It is an amenable number.

11102002210021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11102002210021 is an equidigital number, since it uses as much as digits as its factorization.

11102002210021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11102002210021 its reverse (12001220020111), we get a palindrome (23103222230132).

The spelling of 11102002210021 in words is "eleven trillion, one hundred two billion, two million, two hundred ten thousand, twenty-one".