12216475115543 has 4 divisors (see below), whose sum is σ = 12251082694128. Its totient is φ = 12181867536960.

The previous prime is 12216475115513. The next prime is 12216475115549. The reversal of 12216475115543 is 34551157461221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12216475115543 - 2¹² = 12216475111447 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 (12216475115549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17303788763 + ... + 17303789468.

It is an arithmetic number, because the mean of its divisors is an integer number (3062770673532).

Almost surely, 2^{12216475115543} is an apocalyptic number.

12216475115543 is a deficient number, since it is larger than the sum of its proper divisors (34607578585).

12216475115543 is an equidigital number, since it uses as much as digits as its factorization.

12216475115543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34607578584.

The product of its digits is 1008000, while the sum is 47.

The spelling of 12216475115543 in words is "twelve trillion, two hundred sixteen billion, four hundred seventy-five million, one hundred fifteen thousand, five hundred forty-three".