12371216 has 40 divisors (see below), whose sum is σ = 28164864. Its totient is φ = 5189760.

The previous prime is 12371213. The next prime is 12371221. The reversal of 12371216 is 61217321.

It is a junction number, because it is equal to n+sod(n) for n = 12371191 and 12371200.

It is not an unprimeable number, because it can be changed into a prime (12371213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416 + ... + 4991.

Almost surely, 2^12371216 is an apocalyptic number.

12371216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12371216 is an abundant number, since it is smaller than the sum of its proper divisors (15793648).

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

12371216 is a wasteful number, since it uses less digits than its factorization.

12371216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5439 (or 5433 counting only the distinct ones).

The product of its digits is 504, while the sum is 23.

The square root of 12371216 is about 3517.2739444064. The cubic root of 12371216 is about 231.2796722578.

Adding to 12371216 its reverse (61217321), we get a palindrome (73588537).

The spelling of 12371216 in words is "twelve million, three hundred seventy-one thousand, two hundred sixteen".