12216503106 has 40 divisors (see below), whose sum is σ = 27956459520. Its totient is φ = 3985523352.

The previous prime is 12216503069. The next prime is 12216503113. The reversal of 12216503106 is 60130561221.

12216503106 is a `hidden beast` number, since 1 + 2 + 2 + 1 + 650 + 3 + 1 + 0 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 12216503106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 794626 + ... + 809853.

It is an arithmetic number, because the mean of its divisors is an integer number (698911488).

Almost surely, 2^12216503106 is an apocalyptic number.

12216503106 is an abundant number, since it is smaller than the sum of its proper divisors (15739956414).

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

12216503106 is a wasteful number, since it uses less digits than its factorization.

12216503106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604540 (or 1604531 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The spelling of 12216503106 in words is "twelve billion, two hundred sixteen million, five hundred three thousand, one hundred six".