230221220 has 12 divisors (see below), whose sum is σ = 483464604. Its totient is φ = 92088480.

The previous prime is 230221219. The next prime is 230221223. The reversal of 230221220 is 22122032.

It can be written as a sum of positive squares in 2 ways, for example, as 48888064 + 181333156 = 6992^2 + 13466^2 .

It is a junction number, because it is equal to n+sod(n) for n = 230221195 and 230221204.

It is not an unprimeable number, because it can be changed into a prime (230221223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5755511 + ... + 5755550.

It is an arithmetic number, because the mean of its divisors is an integer number (40288717).

Almost surely, 2^230221220 is an apocalyptic number.

230221220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230221220 is an abundant number, since it is smaller than the sum of its proper divisors (253243384).

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

230221220 is a wasteful number, since it uses less digits than its factorization.

230221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11511070 (or 11511068 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 230221220 is about 15173.0425426148. The cubic root of 230221220 is about 612.8889391428. Note that the first 3 decimals are identical.

Adding to 230221220 its reverse (22122032), we get a palindrome (252343252).

It can be divided in two parts, 23022 and 1220, that added together give a palindrome (24242).

The spelling of 230221220 in words is "two hundred thirty million, two hundred twenty-one thousand, two hundred twenty".