12441220402 has 8 divisors (see below), whose sum is σ = 20097356076. Its totient is φ = 5742101712.

The previous prime is 12441220397. The next prime is 12441220409. The reversal of 12441220402 is 20402214421.

It can be written as a sum of positive squares in 2 ways, for example, as 12349654641 + 91565761 = 111129^2 + 9569^2 .

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

It is a super-2 number, since 2×12441220402² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12441220409) 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 3 ways as a sum of consecutive naturals, for example, 239254213 + ... + 239254264.

Almost surely, 2^12441220402 is an apocalyptic number.

12441220402 is a deficient number, since it is larger than the sum of its proper divisors (7656135674).

12441220402 is a wasteful number, since it uses less digits than its factorization.

12441220402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478508492.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 12441220402 its reverse (20402214421), we get a palindrome (32843434823).

The spelling of 12441220402 in words is "twelve billion, four hundred forty-one million, two hundred twenty thousand, four hundred two".