11221311229 has 2 divisors, whose sum is σ = 11221311230. Its totient is φ = 11221311228.

The previous prime is 11221311217. The next prime is 11221311259. The reversal of 11221311229 is 92211312211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11220105625 + 1205604 = 105925^2 + 1098^2 .

It is a cyclic number.

It is not a de Polignac number, because 11221311229 - 2¹¹ = 11221309181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11221311259) 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, 5610655614 + 5610655615.

It is an arithmetic number, because the mean of its divisors is an integer number (5610655615).

Almost surely, 2^11221311229 is an apocalyptic number.

It is an amenable number.

11221311229 is a deficient number, since it is larger than the sum of its proper divisors (1).

11221311229 is an equidigital number, since it uses as much as digits as its factorization.

11221311229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 25.

The spelling of 11221311229 in words is "eleven billion, two hundred twenty-one million, three hundred eleven thousand, two hundred twenty-nine".