4021144242025 has 12 divisors (see below), whose sum is σ = 5022614622492. Its totient is φ = 3193434256640.

The previous prime is 4021144242023. The next prime is 4021144242041. The reversal of 4021144242025 is 5202424411204.

It can be written as a sum of positive squares in 6 ways, for example, as 260601061081 + 3760543180944 = 510491^2 + 1939212^2 .

It is not a de Polignac number, because 4021144242025 - 2¹ = 4021144242023 is a prime.

It is a super-3 number, since 3×4021144242025³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4021144242023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 587024932 + ... + 587031781.

It is an arithmetic number, because the mean of its divisors is an integer number (418551218541).

Almost surely, 2^{4021144242025} is an apocalyptic number.

It is an amenable number.

4021144242025 is a deficient number, since it is larger than the sum of its proper divisors (1001470380467).

4021144242025 is a wasteful number, since it uses less digits than its factorization.

4021144242025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174056860 (or 1174056855 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 31.

Adding to 4021144242025 its reverse (5202424411204), we get a palindrome (9223568653229).

The spelling of 4021144242025 in words is "four trillion, twenty-one billion, one hundred forty-four million, two hundred forty-two thousand, twenty-five".