4242221244001 has 4 divisors (see below), whose sum is σ = 4568545955092. Its totient is φ = 3915896532912.

The previous prime is 4242221243983. The next prime is 4242221244007. The reversal of 4242221244001 is 1004421222424.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2642120211600 + 1600101032401 = 1625460^2 + 1264951^2 .

It is not a de Polignac number, because 4242221244001 - 2⁵ = 4242221243969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4242221244007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163162355526 + ... + 163162355551.

It is an arithmetic number, because the mean of its divisors is an integer number (1142136488773).

Almost surely, 2^{4242221244001} is an apocalyptic number.

It is an amenable number.

4242221244001 is a deficient number, since it is larger than the sum of its proper divisors (326324711091).

4242221244001 is a wasteful number, since it uses less digits than its factorization.

4242221244001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326324711090.

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 4242221244001 its reverse (1004421222424), we get a palindrome (5246642466425).

The spelling of 4242221244001 in words is "four trillion, two hundred forty-two billion, two hundred twenty-one million, two hundred forty-four thousand, one".