12223132144 has 20 divisors (see below), whose sum is σ = 24711985296. Its totient is φ = 5845845632.

The previous prime is 12223132099. The next prime is 12223132147. The reversal of 12223132144 is 44123132221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223132147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16607149 + ... + 16607884.

Almost surely, 2^12223132144 is an apocalyptic number.

It is an amenable number.

12223132144 is an abundant number, since it is smaller than the sum of its proper divisors (12488853152).

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

12223132144 is a wasteful number, since it uses less digits than its factorization.

12223132144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33215064 (or 33215058 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

Adding to 12223132144 its reverse (44123132221), we get a palindrome (56346264365).

The spelling of 12223132144 in words is "twelve billion, two hundred twenty-three million, one hundred thirty-two thousand, one hundred forty-four".