211042230 has 32 divisors (see below), whose sum is σ = 578859264. Its totient is φ = 48238176.

The previous prime is 211042207. The next prime is 211042231. The reversal of 211042230 is 32240112.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211042231) 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, 502272 + ... + 502691.

It is an arithmetic number, because the mean of its divisors is an integer number (18089352).

Almost surely, 2^211042230 is an apocalyptic number.

211042230 is an abundant number, since it is smaller than the sum of its proper divisors (367817034).

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

211042230 is a wasteful number, since it uses less digits than its factorization.

211042230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004980.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 211042230 is about 14527.2925901560. The cubic root of 211042230 is about 595.3738958248.

Adding to 211042230 its reverse (32240112), we get a palindrome (243282342).

The spelling of 211042230 in words is "two hundred eleven million, forty-two thousand, two hundred thirty".