12221442322 has 8 divisors (see below), whose sum is σ = 18333184716. Its totient is φ = 6110380752.

The previous prime is 12221442269. The next prime is 12221442323. The reversal of 12221442322 is 22324412221.

It can be written as a sum of positive squares in 2 ways, for example, as 8600893081 + 3620549241 = 92741^2 + 60171^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12221442323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122673 + ... + 198724.

Almost surely, 2^12221442322 is an apocalyptic number.

12221442322 is a deficient number, since it is larger than the sum of its proper divisors (6111742394).

12221442322 is a wasteful number, since it uses less digits than its factorization.

12221442322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340412.

The product of its digits is 3072, while the sum is 25.

Adding to 12221442322 its reverse (22324412221), we get a palindrome (34545854543).

The spelling of 12221442322 in words is "twelve billion, two hundred twenty-one million, four hundred forty-two thousand, three hundred twenty-two".