12231616215 has 128 divisors (see below), whose sum is σ = 25185484800. Its totient is φ = 4930398720.

The previous prime is 12231616171. The next prime is 12231616217. The reversal of 12231616215 is 51261613221.

It is not a de Polignac number, because 12231616215 - 2⁶ = 12231616151 is a prime.

It is a super-2 number, since 2×12231616215² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231616217) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3341056 + ... + 3344714.

It is an arithmetic number, because the mean of its divisors is an integer number (196761600).

Almost surely, 2^12231616215 is an apocalyptic number.

12231616215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12231616215 is an abundant number, since it is smaller than the sum of its proper divisors (12953868585).

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

12231616215 is a wasteful number, since it uses less digits than its factorization.

12231616215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3797.

The product of its digits is 4320, while the sum is 30.

The spelling of 12231616215 in words is "twelve billion, two hundred thirty-one million, six hundred sixteen thousand, two hundred fifteen".