12217006536 has 192 divisors, whose sum is σ = 37606046400. Its totient is φ = 3288563712.

The previous prime is 12217006519. The next prime is 12217006547. The reversal of 12217006536 is 63560071221.

It is a junction number, because it is equal to n+sod(n) for n = 12217006497 and 12217006506.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4310976 + ... + 4313808.

It is an arithmetic number, because the mean of its divisors is an integer number (195864825).

Almost surely, 2^12217006536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12217006536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18803023200).

12217006536 is an abundant number, since it is smaller than the sum of its proper divisors (25389039864).

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

12217006536 is a wasteful number, since it uses less digits than its factorization.

12217006536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3068 (or 3057 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

Adding to 12217006536 its reverse (63560071221), we get a palindrome (75777077757).

The spelling of 12217006536 in words is "twelve billion, two hundred seventeen million, six thousand, five hundred thirty-six".