12220321331 has 8 divisors (see below), whose sum is σ = 12245421600. Its totient is φ = 12195247680.

The previous prime is 12220321313. The next prime is 12220321343. The reversal of 12220321331 is 13312302221.

12220321331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12220321331 - 2¹⁴ = 12220304947 is a prime.

It is a super-2 number, since 2×12220321331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12220321301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1089530 + ... + 1100688.

It is an arithmetic number, because the mean of its divisors is an integer number (1530677700).

Almost surely, 2^12220321331 is an apocalyptic number.

12220321331 is a deficient number, since it is larger than the sum of its proper divisors (25100269).

12220321331 is a wasteful number, since it uses less digits than its factorization.

12220321331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13309.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12220321331 its reverse (13312302221), we get a palindrome (25532623552).

The spelling of 12220321331 in words is "twelve billion, two hundred twenty million, three hundred twenty-one thousand, three hundred thirty-one".