1212445420424 has 16 divisors (see below), whose sum is σ = 2598097329600. Its totient is φ = 519619465872.

The previous prime is 1212445420421. The next prime is 1212445420451. The reversal of 1212445420424 is 4240245442121.

It is not an unprimeable number, because it can be changed into a prime (1212445420421) 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, 10825405484 + ... + 10825405595.

It is an arithmetic number, because the mean of its divisors is an integer number (162381083100).

Almost surely, 2^{1212445420424} is an apocalyptic number.

1212445420424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1212445420424 is an abundant number, since it is smaller than the sum of its proper divisors (1385651909176).

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

1212445420424 is a wasteful number, since it uses less digits than its factorization.

1212445420424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21650811092 (or 21650811088 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 35.

The spelling of 1212445420424 in words is "one trillion, two hundred twelve billion, four hundred forty-five million, four hundred twenty thousand, four hundred twenty-four".