12420210404 has 96 divisors (see below), whose sum is σ = 27497594880. Its totient is φ = 4782868992.

The previous prime is 12420210379. The next prime is 12420210449. The reversal of 12420210404 is 40401202421.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9710237 + ... + 9711515.

It is an arithmetic number, because the mean of its divisors is an integer number (286433280).

Almost surely, 2^12420210404 is an apocalyptic number.

12420210404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12420210404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13748797440).

12420210404 is an abundant number, since it is smaller than the sum of its proper divisors (15077384476).

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

12420210404 is a wasteful number, since it uses less digits than its factorization.

12420210404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2217 (or 2215 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 12420210404 its product of nonzero digits (512), we get a square (12420210916 = 111446²).

Adding to 12420210404 its reverse (40401202421), we get a palindrome (52821412825).

The spelling of 12420210404 in words is "twelve billion, four hundred twenty million, two hundred ten thousand, four hundred four".