4021444041401 has 4 divisors (see below), whose sum is σ = 4021491108132. Its totient is φ = 4021396974672.

The previous prime is 4021444041397. The next prime is 4021444041409. The reversal of 4021444041401 is 1041404441204.

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 1691302851001 + 2330141190400 = 1300501^2 + 1526480^2 .

It is a cyclic number.

It is not a de Polignac number, because 4021444041401 - 2² = 4021444041397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4021444041409) 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, 23404970 + ... + 23576163.

It is an arithmetic number, because the mean of its divisors is an integer number (1005372777033).

Almost surely, 2^{4021444041401} is an apocalyptic number.

It is an amenable number.

4021444041401 is a deficient number, since it is larger than the sum of its proper divisors (47066731).

4021444041401 is an equidigital number, since it uses as much as digits as its factorization.

4021444041401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47066730.

The product of its (nonzero) digits is 8192, while the sum is 29.

Adding to 4021444041401 its reverse (1041404441204), we get a palindrome (5062848482605).

The spelling of 4021444041401 in words is "four trillion, twenty-one billion, four hundred forty-four million, forty-one thousand, four hundred one".