4243440120212 has 48 divisors (see below), whose sum is σ = 7511023069200. Its totient is φ = 2097573983232.

The previous prime is 4243440120203. The next prime is 4243440120217. The reversal of 4243440120212 is 2120210443424.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 30626400016 + 4212813720196 = 175004^2 + 2052514^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4243440120217) 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, 189860414 + ... + 189882762.

It is an arithmetic number, because the mean of its divisors is an integer number (156479647275).

Almost surely, 2^{4243440120212} is an apocalyptic number.

It is an amenable number.

4243440120212 is a deficient number, since it is larger than the sum of its proper divisors (3267582948988).

4243440120212 is a wasteful number, since it uses less digits than its factorization.

4243440120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23900 (or 23898 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 4243440120212 its reverse (2120210443424), we get a palindrome (6363650563636).

The spelling of 4243440120212 in words is "four trillion, two hundred forty-three billion, four hundred forty million, one hundred twenty thousand, two hundred twelve".