63221330 has 24 divisors (see below), whose sum is σ = 115370892. Its totient is φ = 24943776.

The previous prime is 63221329. The next prime is 63221359. The reversal of 63221330 is 3312236.

63221330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 51681721 + 11539609 = 7189^2 + 3397^2 .

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 11 ways as a sum of consecutive naturals, for example, 61904 + ... + 62916.

Almost surely, 2^63221330 is an apocalyptic number.

63221330 is a deficient number, since it is larger than the sum of its proper divisors (52149562).

63221330 is a wasteful number, since it uses less digits than its factorization.

63221330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178 (or 1099 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 63221330 is about 7951.1841885344. The cubic root of 63221330 is about 398.3711469309.

Adding to 63221330 its reverse (3312236), we get a palindrome (66533566).

The spelling of 63221330 in words is "sixty-three million, two hundred twenty-one thousand, three hundred thirty".