11321221323229 has 2 divisors, whose sum is σ = 11321221323230. Its totient is φ = 11321221323228.

The previous prime is 11321221323199. The next prime is 11321221323239. The reversal of 11321221323229 is 92232312212311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11139640512100 + 181580811129 = 3337610^2 + 426123^2 .

It is an emirp because it is prime and its reverse (92232312212311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11321221323229 - 2⁷ = 11321221323101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11321221323194 and 11321221323203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11321221323239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5660610661614 + 5660610661615.

It is an arithmetic number, because the mean of its divisors is an integer number (5660610661615).

Almost surely, 2^{11321221323229} is an apocalyptic number.

It is an amenable number.

11321221323229 is a deficient number, since it is larger than the sum of its proper divisors (1).

11321221323229 is an equidigital number, since it uses as much as digits as its factorization.

11321221323229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 34.

The spelling of 11321221323229 in words is "eleven trillion, three hundred twenty-one billion, two hundred twenty-one million, three hundred twenty-three thousand, two hundred twenty-nine".