12119938398855 has 128 divisors (see below), whose sum is σ = 24656563261440. Its totient is φ = 5533365934080.

The previous prime is 12119938398851. The next prime is 12119938398859. The reversal of 12119938398855 is 55889383991121.

12119938398855 is a `hidden beast` number, since 1 + 2 + 1 + 199 + 383 + 9 + 8 + 8 + 55 = 666.

It is an interprime number because it is at equal distance from previous prime (12119938398851) and next prime (12119938398859).

It is not a de Polignac number, because 12119938398855 - 2² = 12119938398851 is a prime.

It is a super-2 number, since 2×12119938398855² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12119938398851) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4470650950 + ... + 4470653660.

It is an arithmetic number, because the mean of its divisors is an integer number (192629400480).

Almost surely, 2^{12119938398855} is an apocalyptic number.

12119938398855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12119938398855 is an abundant number, since it is smaller than the sum of its proper divisors (12536624862585).

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

12119938398855 is a wasteful number, since it uses less digits than its factorization.

12119938398855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7118 (or 7112 counting only the distinct ones).

The product of its digits is 167961600, while the sum is 72.

The spelling of 12119938398855 in words is "twelve trillion, one hundred nineteen billion, nine hundred thirty-eight million, three hundred ninety-eight thousand, eight hundred fifty-five".