12420412101 has 24 divisors (see below), whose sum is σ = 18624196864. Its totient is φ = 8271758880.

The previous prime is 12420412079. The next prime is 12420412127. The reversal of 12420412101 is 10121402421.

12420412101 is a `hidden beast` number, since 1 + 242 + 0 + 412 + 10 + 1 = 666.

It is not a de Polignac number, because 12420412101 - 2⁹ = 12420411589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12420412801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 215025 + ... + 266601.

Almost surely, 2^12420412101 is an apocalyptic number.

It is an amenable number.

12420412101 is a deficient number, since it is larger than the sum of its proper divisors (6203784763).

12420412101 is an frugal number, since it uses more digits than its factorization.

12420412101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52583 (or 52571 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12420412101 its reverse (10121402421), we get a palindrome (22541814522).

The spelling of 12420412101 in words is "twelve billion, four hundred twenty million, four hundred twelve thousand, one hundred one".