63221130 has 96 divisors (see below), whose sum is σ = 198941184. Its totient is φ = 13598208.

The previous prime is 63221117. The next prime is 63221143. The reversal of 63221130 is 3112236.

63221130 is a `hidden beast` number, since 632 + 2 + 1 + 1 + 30 = 666.

63221130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (63221117) and next prime (63221143).

It is a super-2 number, since 2×63221130² = 7993822556953800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 47 ways as a sum of consecutive naturals, for example, 7759 + ... + 13661.

It is an arithmetic number, because the mean of its divisors is an integer number (2072304).

Almost surely, 2^63221130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63221130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99470592).

63221130 is an abundant number, since it is smaller than the sum of its proper divisors (135720054).

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

63221130 is a wasteful number, since it uses less digits than its factorization.

63221130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5940 (or 5937 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 63221130 is about 7951.1716117815. The cubic root of 63221130 is about 398.3707268495.

Adding to 63221130 its reverse (3112236), we get a palindrome (66333366).

The spelling of 63221130 in words is "sixty-three million, two hundred twenty-one thousand, one hundred thirty".