11021000012021 has 2 divisors, whose sum is σ = 11021000012022. Its totient is φ = 11021000012020.

The previous prime is 11021000011999. The next prime is 11021000012027. The reversal of 11021000012021 is 12021000012011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9516231655921 + 1504768356100 = 3084839^2 + 1226690^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11021000012021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11021000011993 and 11021000012011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11021000012027) by changing a digit.

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 as a sum of consecutive naturals, namely, 5510500006010 + 5510500006011.

It is an arithmetic number, because the mean of its divisors is an integer number (5510500006011).

Almost surely, 2^{11021000012021} is an apocalyptic number.

It is an amenable number.

11021000012021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11021000012021 is an equidigital number, since it uses as much as digits as its factorization.

11021000012021 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 11.

Adding to 11021000012021 its reverse (12021000012011), we get a palindrome (23042000024032).

The spelling of 11021000012021 in words is "eleven trillion, twenty-one billion, twelve thousand, twenty-one".