11221202011021 has 2 divisors, whose sum is σ = 11221202011022. Its totient is φ = 11221202011020.

The previous prime is 11221202011003. The next prime is 11221202011067. The reversal of 11221202011021 is 12011020212211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8934419902500 + 2286782108521 = 2989050^2 + 1512211^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11221202011021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11221202010986 and 11221202011004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11221202012021) 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, 5610601005510 + 5610601005511.

It is an arithmetic number, because the mean of its divisors is an integer number (5610601005511).

Almost surely, 2^{11221202011021} is an apocalyptic number.

It is an amenable number.

11221202011021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11221202011021 is an equidigital number, since it uses as much as digits as its factorization.

11221202011021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11221202011021 its reverse (12011020212211), we get a palindrome (23232222223232).

The spelling of 11221202011021 in words is "eleven trillion, two hundred twenty-one billion, two hundred two million, eleven thousand, twenty-one".