12216607502871 has 4 divisors (see below), whose sum is σ = 16288810003832. Its totient is φ = 8144405001912.

The previous prime is 12216607502851. The next prime is 12216607502899. The reversal of 12216607502871 is 17820570661221.

12216607502871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12216607502871 - 2²⁷ = 12216473285143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12216607502871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12216607502831) 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, 2036101250476 + ... + 2036101250481.

It is an arithmetic number, because the mean of its divisors is an integer number (4072202500958).

Almost surely, 2^{12216607502871} is an apocalyptic number.

12216607502871 is a deficient number, since it is larger than the sum of its proper divisors (4072202500961).

12216607502871 is an equidigital number, since it uses as much as digits as its factorization.

12216607502871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4072202500960.

The product of its (nonzero) digits is 564480, while the sum is 48.

The spelling of 12216607502871 in words is "twelve trillion, two hundred sixteen billion, six hundred seven million, five hundred two thousand, eight hundred seventy-one".