11221302321 has 24 divisors (see below), whose sum is σ = 17112345120. Its totient is φ = 7066071936.

The previous prime is 11221302299. The next prime is 11221302343. The reversal of 11221302321 is 12320312211.

It is an interprime number because it is at equal distance from previous prime (11221302299) and next prime (11221302343).

It is not a de Polignac number, because 11221302321 - 2⁵ = 11221302289 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11221302294 and 11221302303.

It is not an unprimeable number, because it can be changed into a prime (11221302371) 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 in 23 ways as a sum of consecutive naturals, for example, 39735 + ... + 154988.

It is an arithmetic number, because the mean of its divisors is an integer number (713014380).

Almost surely, 2^11221302321 is an apocalyptic number.

It is an amenable number.

11221302321 is a deficient number, since it is larger than the sum of its proper divisors (5891042799).

11221302321 is a wasteful number, since it uses less digits than its factorization.

11221302321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195085 (or 195082 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11221302321 its reverse (12320312211), we get a palindrome (23541614532).

The spelling of 11221302321 in words is "eleven billion, two hundred twenty-one million, three hundred two thousand, three hundred twenty-one".