211144230 has 96 divisors (see below), whose sum is σ = 601855488. Its totient is φ = 50932800.

The previous prime is 211144217. The next prime is 211144247. The reversal of 211144230 is 32441112.

211144230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 267897 + ... + 268683.

It is an arithmetic number, because the mean of its divisors is an integer number (6269328).

Almost surely, 2^211144230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211144230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300927744).

211144230 is an abundant number, since it is smaller than the sum of its proper divisors (390711258).

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

211144230 is a wasteful number, since it uses less digits than its factorization.

211144230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082 (or 1079 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 211144230 is about 14530.8027995703. The cubic root of 211144230 is about 595.4697982048.

Adding to 211144230 its reverse (32441112), we get a palindrome (243585342).

It can be divided in two parts, 211 and 144230, that added together give a palindrome (144441).

The spelling of 211144230 in words is "two hundred eleven million, one hundred forty-four thousand, two hundred thirty".