12182012205855 has 8 divisors (see below), whose sum is σ = 19491219529392. Its totient is φ = 6497073176448.

The previous prime is 12182012205817. The next prime is 12182012205887. The reversal of 12182012205855 is 55850221028121.

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

It is not a de Polignac number, because 12182012205855 - 2¹² = 12182012201759 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406067073514 + ... + 406067073543.

It is an arithmetic number, because the mean of its divisors is an integer number (2436402441174).

Almost surely, 2^{12182012205855} is an apocalyptic number.

12182012205855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12182012205855 is a deficient number, since it is larger than the sum of its proper divisors (7309207323537).

12182012205855 is an equidigital number, since it uses as much as digits as its factorization.

12182012205855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812134147065.

The product of its (nonzero) digits is 128000, while the sum is 42.

The spelling of 12182012205855 in words is "twelve trillion, one hundred eighty-two billion, twelve million, two hundred five thousand, eight hundred fifty-five".