4021444440231 has 32 divisors (see below), whose sum is σ = 5730944901120. Its totient is φ = 2502742502400.

The previous prime is 4021444440157. The next prime is 4021444440263. The reversal of 4021444440231 is 1320444441204.

It is not a de Polignac number, because 4021444440231 - 2¹³ = 4021444432039 is a prime.

It is a super-2 number, since 2×4021444440231² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4021444440192 and 4021444440201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021444440271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2298871 + ... + 3650711.

It is an arithmetic number, because the mean of its divisors is an integer number (179092028160).

Almost surely, 2^{4021444440231} is an apocalyptic number.

4021444440231 is a deficient number, since it is larger than the sum of its proper divisors (1709500460889).

4021444440231 is a wasteful number, since it uses less digits than its factorization.

4021444440231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353007.

The product of its (nonzero) digits is 49152, while the sum is 33.

Adding to 4021444440231 its reverse (1320444441204), we get a palindrome (5341888881435).

The spelling of 4021444440231 in words is "four trillion, twenty-one billion, four hundred forty-four million, four hundred forty thousand, two hundred thirty-one".