4242221243444 has 12 divisors (see below), whose sum is σ = 7439784153984. Its totient is φ = 2116568628024.

The previous prime is 4242221243423. The next prime is 4242221243471. The reversal of 4242221243444 is 4443421222424.

It is a super-2 number, since 2×4242221243444² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4242221243398 and 4242221243407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1135496324 + ... + 1135500059.

It is an arithmetic number, because the mean of its divisors is an integer number (619982012832).

Almost surely, 2^{4242221243444} is an apocalyptic number.

It is an amenable number.

4242221243444 is a deficient number, since it is larger than the sum of its proper divisors (3197562910540).

4242221243444 is a wasteful number, since it uses less digits than its factorization.

4242221243444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2270996854 (or 2270996852 counting only the distinct ones).

The product of its digits is 393216, while the sum is 38.

Adding to 4242221243444 its reverse (4443421222424), we get a palindrome (8685642465868).

The spelling of 4242221243444 in words is "four trillion, two hundred forty-two billion, two hundred twenty-one million, two hundred forty-three thousand, four hundred forty-four".