12224533145 has 64 divisors (see below), whose sum is σ = 17557585920. Its totient is φ = 8069529600.

The previous prime is 12224533141. The next prime is 12224533187. The reversal of 12224533145 is 54133542221.

It is not a de Polignac number, because 12224533145 - 2² = 12224533141 is a prime.

It is a super-2 number, since 2×12224533145² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12224533141) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3410024 + ... + 3413606.

It is an arithmetic number, because the mean of its divisors is an integer number (274337280).

Almost surely, 2^12224533145 is an apocalyptic number.

It is an amenable number.

12224533145 is a deficient number, since it is larger than the sum of its proper divisors (5333052775).

12224533145 is a wasteful number, since it uses less digits than its factorization.

12224533145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3746.

The product of its digits is 28800, while the sum is 32.

The spelling of 12224533145 in words is "twelve billion, two hundred twenty-four million, five hundred thirty-three thousand, one hundred forty-five".