4221321232 has 10 divisors (see below), whose sum is σ = 8178809918. Its totient is φ = 2110660608.

The previous prime is 4221321217. The next prime is 4221321233. The reversal of 4221321232 is 2321231224.

It can be written as a sum of positive squares in only one way, i.e., 4030218256 + 191102976 = 63484^2 + 13824^2 .

It is not an unprimeable number, because it can be changed into a prime (4221321233) 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 as a sum of consecutive naturals, namely, 131916273 + ... + 131916304.

Almost surely, 2^4221321232 is an apocalyptic number.

It is an amenable number.

4221321232 is a deficient number, since it is larger than the sum of its proper divisors (3957488686).

4221321232 is a wasteful number, since it uses less digits than its factorization.

4221321232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263832585 (or 263832579 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 4221321232 is about 64971.6956220168. The cubic root of 4221321232 is about 1616.1542205691.

Adding to 4221321232 its reverse (2321231224), we get a palindrome (6542552456).

The spelling of 4221321232 in words is "four billion, two hundred twenty-one million, three hundred twenty-one thousand, two hundred thirty-two".