4043230021212 has 24 divisors (see below), whose sum is σ = 9449493843216. Its totient is φ = 1345558988928.

The previous prime is 4043230021189. The next prime is 4043230021213. The reversal of 4043230021212 is 2121200323404.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4043230021213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273036223 + ... + 273051030.

It is an arithmetic number, because the mean of its divisors is an integer number (393728910134).

Almost surely, 2^{4043230021212} is an apocalyptic number.

It is an amenable number.

4043230021212 is an abundant number, since it is smaller than the sum of its proper divisors (5406263822004).

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

4043230021212 is a wasteful number, since it uses less digits than its factorization.

4043230021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546087877 (or 546087875 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 4043230021212 its reverse (2121200323404), we get a palindrome (6164430344616).

The spelling of 4043230021212 in words is "four trillion, forty-three billion, two hundred thirty million, twenty-one thousand, two hundred twelve".