4243221200424 has 32 divisors (see below), whose sum is σ = 10608159702240. Its totient is φ = 1414392840000.

The previous prime is 4243221200399. The next prime is 4243221200429. The reversal of 4243221200424 is 4240021223424.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4243221200391 and 4243221200400.

It is not an unprimeable number, because it can be changed into a prime (4243221200429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1700499 + ... + 3373149.

It is an arithmetic number, because the mean of its divisors is an integer number (331504990695).

Almost surely, 2^{4243221200424} is an apocalyptic number.

It is an amenable number.

4243221200424 is an abundant number, since it is smaller than the sum of its proper divisors (6364938501816).

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

4243221200424 is a wasteful number, since it uses less digits than its factorization.

4243221200424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778361 (or 1778357 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 4243221200424 its reverse (4240021223424), we get a palindrome (8483242423848).

The spelling of 4243221200424 in words is "four trillion, two hundred forty-three billion, two hundred twenty-one million, two hundred thousand, four hundred twenty-four".