11331122000221 has 2 divisors, whose sum is σ = 11331122000222. Its totient is φ = 11331122000220.

The previous prime is 11331122000179. The next prime is 11331122000243. The reversal of 11331122000221 is 12200022113311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8566597265625 + 2764524734596 = 2926875^2 + 1662686^2 .

It is a cyclic number.

It is not a de Polignac number, because 11331122000221 - 2⁹ = 11331121999709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11331122600221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5665561000110 + 5665561000111.

It is an arithmetic number, because the mean of its divisors is an integer number (5665561000111).

Almost surely, 2^{11331122000221} is an apocalyptic number.

It is an amenable number.

11331122000221 is a deficient number, since it is larger than the sum of its proper divisors (1).

11331122000221 is an equidigital number, since it uses as much as digits as its factorization.

11331122000221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 11331122000221 its reverse (12200022113311), we get a palindrome (23531144113532).

The spelling of 11331122000221 in words is "eleven trillion, three hundred thirty-one billion, one hundred twenty-two million, two hundred twenty-one", and thus it is an aban number.