220030231 has 8 divisors (see below), whose sum is σ = 231490224. Its totient is φ = 208860480.

The previous prime is 220030193. The next prime is 220030243. The reversal of 220030231 is 132030022.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 220030231 - 2¹¹ = 220028183 is a prime.

It is a super-2 number, since 2×220030231² = 96826605107826722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220039231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71005 + ... + 74038.

It is an arithmetic number, because the mean of its divisors is an integer number (28936278).

Almost surely, 2^220030231 is an apocalyptic number.

220030231 is a deficient number, since it is larger than the sum of its proper divisors (11459993).

220030231 is a wasteful number, since it uses less digits than its factorization.

220030231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145121.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 220030231 is about 14833.4160259867. The cubic root of 220030231 is about 603.7087237505.

Adding to 220030231 its reverse (132030022), we get a palindrome (352060253).

The spelling of 220030231 in words is "two hundred twenty million, thirty thousand, two hundred thirty-one".