212040240230 has 32 divisors (see below), whose sum is σ = 469750688064. Its totient is φ = 67107240576.

The previous prime is 212040240229. The next prime is 212040240233. The reversal of 212040240230 is 32042040212.

212040240230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×212040240230² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212040240233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116504717 + ... + 116506536.

It is an arithmetic number, because the mean of its divisors is an integer number (14679709002).

Almost surely, 2^212040240230 is an apocalyptic number.

212040240230 is an abundant number, since it is smaller than the sum of its proper divisors (257710447834).

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

212040240230 is a wasteful number, since it uses less digits than its factorization.

212040240230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233011280.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 212040240230 its reverse (32042040212), we get a palindrome (244082280442).

The spelling of 212040240230 in words is "two hundred twelve billion, forty million, two hundred forty thousand, two hundred thirty".