11221302289 has 2 divisors, whose sum is σ = 11221302290. Its totient is φ = 11221302288.

The previous prime is 11221302263. The next prime is 11221302299. The reversal of 11221302289 is 98220312211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10333739025 + 887563264 = 101655^2 + 29792^2 .

It is a cyclic number.

It is not a de Polignac number, because 11221302289 - 2¹¹ = 11221300241 is a prime.

It is a super-2 number, since 2×11221302289² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11221302289.

It is not a weakly prime, because it can be changed into another prime (11221302299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610651144 + 5610651145.

It is an arithmetic number, because the mean of its divisors is an integer number (5610651145).

Almost surely, 2^11221302289 is an apocalyptic number.

It is an amenable number.

11221302289 is a deficient number, since it is larger than the sum of its proper divisors (1).

11221302289 is an equidigital number, since it uses as much as digits as its factorization.

11221302289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 11221302289 in words is "eleven billion, two hundred twenty-one million, three hundred two thousand, two hundred eighty-nine".