4243224021044 has 12 divisors (see below), whose sum is σ = 7425708543204. Its totient is φ = 2121593008704.

The previous prime is 4243224021041. The next prime is 4243224021053. The reversal of 4243224021044 is 4401204223424.

It can be written as a sum of positive squares in 2 ways, for example, as 2161523324944 + 2081700696100 = 1470212^2 + 1442810^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4243224021044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4243224021041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4241969 + ... + 5145944.

It is an arithmetic number, because the mean of its divisors is an integer number (618809045267).

Almost surely, 2^{4243224021044} is an apocalyptic number.

It is an amenable number.

4243224021044 is a deficient number, since it is larger than the sum of its proper divisors (3182484522160).

4243224021044 is a wasteful number, since it uses less digits than its factorization.

4243224021044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9500914 (or 9500912 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 4243224021044 its reverse (4401204223424), we get a palindrome (8644428244468).

The spelling of 4243224021044 in words is "four trillion, two hundred forty-three billion, two hundred twenty-four million, twenty-one thousand, forty-four".