12132213446 has 4 divisors (see below), whose sum is σ = 18198320172. Its totient is φ = 6066106722.

The previous prime is 12132213437. The next prime is 12132213449. The reversal of 12132213446 is 64431223121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64431223121 = 23 ⋅2801357527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12132213449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3033053360 + ... + 3033053363.

It is an arithmetic number, because the mean of its divisors is an integer number (4549580043).

Almost surely, 2^12132213446 is an apocalyptic number.

12132213446 is a deficient number, since it is larger than the sum of its proper divisors (6066106726).

12132213446 is an equidigital number, since it uses as much as digits as its factorization.

12132213446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6066106725.

The product of its digits is 6912, while the sum is 29.

Adding to 12132213446 its reverse (64431223121), we get a palindrome (76563436567).

The spelling of 12132213446 in words is "twelve billion, one hundred thirty-two million, two hundred thirteen thousand, four hundred forty-six".