12112215127 has 8 divisors (see below), whose sum is σ = 13046538240. Its totient is φ = 11211867480.

The previous prime is 12112215113. The next prime is 12112215161. The reversal of 12112215127 is 72151221121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12112215127 - 2¹⁵ = 12112182359 is a prime.

It is a super-2 number, since 2×12112215127² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112215107) 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, 8493127 + ... + 8494552.

It is an arithmetic number, because the mean of its divisors is an integer number (1630817280).

Almost surely, 2^12112215127 is an apocalyptic number.

12112215127 is a deficient number, since it is larger than the sum of its proper divisors (934323113).

12112215127 is a wasteful number, since it uses less digits than its factorization.

12112215127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16987733.

The product of its digits is 560, while the sum is 25.

Adding to 12112215127 its reverse (72151221121), we get a palindrome (84263436248).

The spelling of 12112215127 in words is "twelve billion, one hundred twelve million, two hundred fifteen thousand, one hundred twenty-seven".