4021444102021 has 16 divisors (see below), whose sum is σ = 4514147850240. Its totient is φ = 3563800899840.

The previous prime is 4021444101977. The next prime is 4021444102031. The reversal of 4021444102021 is 1202014441204.

It is a happy number.

4021444102021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 4021444102021 - 2¹⁷ = 4021443970949 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 (4021444102031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103099741 + ... + 103138738.

It is an arithmetic number, because the mean of its divisors is an integer number (282134240640).

Almost surely, 2^{4021444102021} is an apocalyptic number.

It is an amenable number.

4021444102021 is a deficient number, since it is larger than the sum of its proper divisors (492703748219).

4021444102021 is a wasteful number, since it uses less digits than its factorization.

4021444102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206238564.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 4021444102021 its reverse (1202014441204), we get a palindrome (5223458543225).

The spelling of 4021444102021 in words is "four trillion, twenty-one billion, four hundred forty-four million, one hundred two thousand, twenty-one".