12117214473 has 16 divisors (see below), whose sum is σ = 19884660096. Its totient is φ = 6391497600.

The previous prime is 12117214441. The next prime is 12117214481. The reversal of 12117214473 is 37441271121.

It is not a de Polignac number, because 12117214473 - 2⁵ = 12117214441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12117214573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22192428 + ... + 22192973.

It is an arithmetic number, because the mean of its divisors is an integer number (1242791256).

Almost surely, 2^12117214473 is an apocalyptic number.

12117214473 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12117214473 is a deficient number, since it is larger than the sum of its proper divisors (7767445623).

12117214473 is a wasteful number, since it uses less digits than its factorization.

12117214473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44385424.

The product of its digits is 9408, while the sum is 33.

Adding to 12117214473 its reverse (37441271121), we get a palindrome (49558485594).

The spelling of 12117214473 in words is "twelve billion, one hundred seventeen million, two hundred fourteen thousand, four hundred seventy-three".