12121344024 has 16 divisors (see below), whose sum is σ = 30303360120. Its totient is φ = 4040448000.

The previous prime is 12121344013. The next prime is 12121344043. The reversal of 12121344024 is 42044312121.

It is a super-3 number, since 3×12121344024³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 505056001 = 12121344024 / (1 + 2 + 1 + 2 + 1 + 3 + 4 + 4 + 0 + 2 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 12121343985 and 12121344003.

It is a congruent number.

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, 252527977 + ... + 252528024.

Almost surely, 2^12121344024 is an apocalyptic number.

It is an amenable number.

12121344024 is an abundant number, since it is smaller than the sum of its proper divisors (18182016096).

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

12121344024 is a wasteful number, since it uses less digits than its factorization.

12121344024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505056010 (or 505056006 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 12121344024 its reverse (42044312121), we get a palindrome (54165656145).

The spelling of 12121344024 in words is "twelve billion, one hundred twenty-one million, three hundred forty-four thousand, twenty-four".