1212243041424 has 20 divisors (see below), whose sum is σ = 3131627857136. Its totient is φ = 404081013792.

The previous prime is 1212243041407. The next prime is 1212243041447. The reversal of 1212243041424 is 4241403422121.

It is a junction number, because it is equal to n+sod(n) for n = 1212243041391 and 1212243041400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12627531634 + ... + 12627531729.

Almost surely, 2^{1212243041424} is an apocalyptic number.

It is an amenable number.

1212243041424 is an abundant number, since it is smaller than the sum of its proper divisors (1919384815712).

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

1212243041424 is a wasteful number, since it uses less digits than its factorization.

1212243041424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25255063374 (or 25255063368 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 1212243041424 its reverse (4241403422121), we get a palindrome (5453646463545).

The spelling of 1212243041424 in words is "one trillion, two hundred twelve billion, two hundred forty-three million, forty-one thousand, four hundred twenty-four".