211232230 has 64 divisors (see below), whose sum is σ = 447897600. Its totient is φ = 70913920.

The previous prime is 211232209. The next prime is 211232243. The reversal of 211232230 is 32232112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71931 + ... + 74809.

It is an arithmetic number, because the mean of its divisors is an integer number (6998400).

Almost surely, 2^211232230 is an apocalyptic number.

211232230 is an abundant number, since it is smaller than the sum of its proper divisors (236665370).

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

211232230 is a wasteful number, since it uses less digits than its factorization.

211232230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2949.

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

The square root of 211232230 is about 14533.8305343086. The cubic root of 211232230 is about 595.5525126981.

Adding to 211232230 its reverse (32232112), we get a palindrome (243464342).

The spelling of 211232230 in words is "two hundred eleven million, two hundred thirty-two thousand, two hundred thirty".