12420412402 has 8 divisors (see below), whose sum is σ = 18795491676. Its totient is φ = 6155248512.

The previous prime is 12420412393. The next prime is 12420412547. The reversal of 12420412402 is 20421402421.

12420412402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11618899681 + 801512721 = 107791^2 + 28311^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27478563 + ... + 27479014.

Almost surely, 2^12420412402 is an apocalyptic number.

12420412402 is a deficient number, since it is larger than the sum of its proper divisors (6375079274).

12420412402 is a wasteful number, since it uses less digits than its factorization.

12420412402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54957692.

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

Adding to 12420412402 its reverse (20421402421), we get a palindrome (32841814823).

The spelling of 12420412402 in words is "twelve billion, four hundred twenty million, four hundred twelve thousand, four hundred two".