1230221424 has 160 divisors (see below), whose sum is σ = 3519774720. Its totient is φ = 368527104.

The previous prime is 1230221407. The next prime is 1230221431. The reversal of 1230221424 is 4241220321.

It is a self number, because there is not a number n which added to its sum of digits gives 1230221424.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 4677517 + ... + 4677779.

It is an arithmetic number, because the mean of its divisors is an integer number (21998592).

Almost surely, 2^1230221424 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 1230221424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1759887360).

1230221424 is an abundant number, since it is smaller than the sum of its proper divisors (2289553296).

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

1230221424 is a wasteful number, since it uses less digits than its factorization.

1230221424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539 (or 533 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1230221424 is about 35074.5124556279. The cubic root of 1230221424 is about 1071.5055592780.

Adding to 1230221424 its reverse (4241220321), we get a palindrome (5471441745).

The spelling of 1230221424 in words is "one billion, two hundred thirty million, two hundred twenty-one thousand, four hundred twenty-four".