12421380885 has 16 divisors (see below), whose sum is σ = 19875590784. Its totient is φ = 6624276032.

The previous prime is 12421380883. The next prime is 12421380887. The reversal of 12421380885 is 58808312421.

It is an interprime number because it is at equal distance from previous prime (12421380883) and next prime (12421380887).

It is a cyclic number.

It is not a de Polignac number, because 12421380885 - 2¹ = 12421380883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12421380883) 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 15 ways as a sum of consecutive naturals, for example, 412864 + ... + 441926.

It is an arithmetic number, because the mean of its divisors is an integer number (1242224424).

Almost surely, 2^12421380885 is an apocalyptic number.

12421380885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12421380885 is a deficient number, since it is larger than the sum of its proper divisors (7454209899).

12421380885 is a wasteful number, since it uses less digits than its factorization.

12421380885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57564.

The product of its (nonzero) digits is 122880, while the sum is 42.

The spelling of 12421380885 in words is "twelve billion, four hundred twenty-one million, three hundred eighty thousand, eight hundred eighty-five".