12002404402 has 4 divisors (see below), whose sum is σ = 18003606606. Its totient is φ = 6001202200.

The previous prime is 12002404399. The next prime is 12002404441. The reversal of 12002404402 is 20440420021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11883398121 + 119006281 = 109011^2 + 10909^2 .

It is a super-2 number, since 2×12002404402² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12002404402.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3000601099 + ... + 3000601102.

Almost surely, 2^12002404402 is an apocalyptic number.

12002404402 is a deficient number, since it is larger than the sum of its proper divisors (6001202204).

12002404402 is an equidigital number, since it uses as much as digits as its factorization.

12002404402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6001202203.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 12002404402 its reverse (20440420021), we get a palindrome (32442824423).

The spelling of 12002404402 in words is "twelve billion, two million, four hundred four thousand, four hundred two".