4021444433101 has 16 divisors (see below), whose sum is σ = 4215493009408. Its totient is φ = 3831481407600.

The previous prime is 4021444433063. The next prime is 4021444433107. The reversal of 4021444433101 is 1013344441204.

It is a cyclic number.

It is not a de Polignac number, because 4021444433101 - 2²¹ = 4021442335949 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021444433107) 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, 3160336 + ... + 4246246.

It is an arithmetic number, because the mean of its divisors is an integer number (263468313088).

Almost surely, 2^{4021444433101} is an apocalyptic number.

It is an amenable number.

4021444433101 is a deficient number, since it is larger than the sum of its proper divisors (194048576307).

4021444433101 is a wasteful number, since it uses less digits than its factorization.

4021444433101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087792.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 4021444433101 its reverse (1013344441204), we get a palindrome (5034788874305).

The spelling of 4021444433101 in words is "four trillion, twenty-one billion, four hundred forty-four million, four hundred thirty-three thousand, one hundred one".