4244042220421 has 8 divisors (see below), whose sum is σ = 4246518830400. Its totient is φ = 4241565807648.

The previous prime is 4244042220419. The next prime is 4244042220547. The reversal of 4244042220421 is 1240222404424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4244042220421 - 2¹ = 4244042220419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4244042227421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77267650 + ... + 77322556.

It is an arithmetic number, because the mean of its divisors is an integer number (530814853800).

Almost surely, 2^{4244042220421} is an apocalyptic number.

It is an amenable number.

4244042220421 is a deficient number, since it is larger than the sum of its proper divisors (2476609979).

4244042220421 is a wasteful number, since it uses less digits than its factorization.

4244042220421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98603.

The product of its (nonzero) digits is 32768, while the sum is 31.

Adding to 4244042220421 its reverse (1240222404424), we get a palindrome (5484264624845).

The spelling of 4244042220421 in words is "four trillion, two hundred forty-four billion, forty-two million, two hundred twenty thousand, four hundred twenty-one".