12041221224 has 16 divisors (see below), whose sum is σ = 30103053120. Its totient is φ = 4013740400.

The previous prime is 12041221217. The next prime is 12041221273. The reversal of 12041221224 is 42212214021.

It is a self number, because there is not a number n which added to its sum of digits gives 12041221224.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250858752 + ... + 250858799.

It is an arithmetic number, because the mean of its divisors is an integer number (1881440820).

Almost surely, 2^12041221224 is an apocalyptic number.

It is an amenable number.

12041221224 is an abundant number, since it is smaller than the sum of its proper divisors (18061831896).

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

12041221224 is a wasteful number, since it uses less digits than its factorization.

12041221224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501717560 (or 501717556 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 12041221224 its reverse (42212214021), we get a palindrome (54253435245).

The spelling of 12041221224 in words is "twelve billion, forty-one million, two hundred twenty-one thousand, two hundred twenty-four".