142441221424 has 80 divisors (see below), whose sum is σ = 286979757120. Its totient is φ = 68408524800.

The previous prime is 142441221421. The next prime is 142441221427. The reversal of 142441221424 is 424122144241.

It is an interprime number because it is at equal distance from previous prime (142441221421) and next prime (142441221427).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (142441221421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98438269 + ... + 98439715.

It is an arithmetic number, because the mean of its divisors is an integer number (3587246964).

Almost surely, 2^142441221424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142441221424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143489878560).

142441221424 is an abundant number, since it is smaller than the sum of its proper divisors (144538535696).

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

142441221424 is a wasteful number, since it uses less digits than its factorization.

142441221424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2438 (or 2432 counting only the distinct ones).

The product of its digits is 16384, while the sum is 31.

Adding to 142441221424 its reverse (424122144241), we get a palindrome (566563365665).

The spelling of 142441221424 in words is "one hundred forty-two billion, four hundred forty-one million, two hundred twenty-one thousand, four hundred twenty-four".