12143224402 has 8 divisors (see below), whose sum is σ = 18215624700. Its totient is φ = 6071349504.

The previous prime is 12143224393. The next prime is 12143224403. The reversal of 12143224402 is 20442234121.

It can be written as a sum of positive squares in 2 ways, for example, as 12113423721 + 29800681 = 110061^2 + 5459^2 .

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 (12143224403) 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, 67327 + ... + 169762.

Almost surely, 2^12143224402 is an apocalyptic number.

12143224402 is a deficient number, since it is larger than the sum of its proper divisors (6072400298).

12143224402 is a wasteful number, since it uses less digits than its factorization.

12143224402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262700.

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

Adding to 12143224402 its reverse (20442234121), we get a palindrome (32585458523).

It can be divided in two parts, 1214 and 3224402, that added together give a square (3225616 = 1796²).

The spelling of 12143224402 in words is "twelve billion, one hundred forty-three million, two hundred twenty-four thousand, four hundred two".