221430130 has 8 divisors (see below), whose sum is σ = 398574252. Its totient is φ = 88572048.

The previous prime is 221430107. The next prime is 221430133. The reversal of 221430130 is 31034122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 217474009 + 3956121 = 14747^2 + 1989^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (221430133) 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 3 ways as a sum of consecutive naturals, for example, 11071497 + ... + 11071516.

Almost surely, 2^221430130 is an apocalyptic number.

221430130 is a deficient number, since it is larger than the sum of its proper divisors (177144122).

221430130 is a wasteful number, since it uses less digits than its factorization.

221430130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22143020.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 221430130 is about 14880.5285524406. The cubic root of 221430130 is about 604.9863439761.

Adding to 221430130 its reverse (31034122), we get a palindrome (252464252).

The spelling of 221430130 in words is "two hundred twenty-one million, four hundred thirty thousand, one hundred thirty".