12216132723 has 16 divisors (see below), whose sum is σ = 16592607360. Its totient is φ = 7992346176.

The previous prime is 12216132703. The next prime is 12216132751. The reversal of 12216132723 is 32723161221.

It is not a de Polignac number, because 12216132723 - 2¹² = 12216128627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12216132703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45111 + ... + 162687.

It is an arithmetic number, because the mean of its divisors is an integer number (1037037960).

Almost surely, 2^12216132723 is an apocalyptic number.

12216132723 is a deficient number, since it is larger than the sum of its proper divisors (4376474637).

12216132723 is a wasteful number, since it uses less digits than its factorization.

12216132723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118226.

The product of its digits is 6048, while the sum is 30.

Adding to 12216132723 its reverse (32723161221), we get a palindrome (44939293944).

The spelling of 12216132723 in words is "twelve billion, two hundred sixteen million, one hundred thirty-two thousand, seven hundred twenty-three".