12123443322 has 12 divisors (see below), whose sum is σ = 26267460570. Its totient is φ = 4041147768.

The previous prime is 12123443303. The next prime is 12123443329. The reversal of 12123443322 is 22334432121.

12123443322 is a `hidden beast` number, since 1 + 212 + 3 + 443 + 3 + 2 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11096304921 + 1027138401 = 105339^2 + 32049^2 .

It is not an unprimeable number, because it can be changed into a prime (12123443329) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 336762297 + ... + 336762332.

Almost surely, 2^12123443322 is an apocalyptic number.

12123443322 is an abundant number, since it is smaller than the sum of its proper divisors (14144017248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12123443322 is a wasteful number, since it uses less digits than its factorization.

12123443322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673524637 (or 673524634 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

Adding to 12123443322 its reverse (22334432121), we get a palindrome (34457875443).

The spelling of 12123443322 in words is "twelve billion, one hundred twenty-three million, four hundred forty-three thousand, three hundred twenty-two".