221030130 has 32 divisors (see below), whose sum is σ = 537744384. Its totient is φ = 58133376.

The previous prime is 221030129. The next prime is 221030137. The reversal of 221030130 is 31030122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (221030137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48274 + ... + 52653.

It is an arithmetic number, because the mean of its divisors is an integer number (16804512).

Almost surely, 2^221030130 is an apocalyptic number.

221030130 is an abundant number, since it is smaller than the sum of its proper divisors (316714254).

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

221030130 is a wasteful number, since it uses less digits than its factorization.

221030130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101010.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 221030130 is about 14867.0820943452. The cubic root of 221030130 is about 604.6218341115.

Adding to 221030130 its reverse (31030122), we get a palindrome (252060252).

The spelling of 221030130 in words is "two hundred twenty-one million, thirty thousand, one hundred thirty".