4021443122141 has 4 divisors (see below), whose sum is σ = 4257998599932. Its totient is φ = 3784887644352.

The previous prime is 4021443122101. The next prime is 4021443122171. The reversal of 4021443122141 is 1412213441204.

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 3001282521241 + 1020160600900 = 1732421^2 + 1010030^2 .

It is a cyclic number.

It is not a de Polignac number, because 4021443122141 - 2²² = 4021438927837 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 (4021443122101) 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, 118277738870 + ... + 118277738903.

It is an arithmetic number, because the mean of its divisors is an integer number (1064499649983).

Almost surely, 2^{4021443122141} is an apocalyptic number.

It is an amenable number.

4021443122141 is a deficient number, since it is larger than the sum of its proper divisors (236555477791).

4021443122141 is a wasteful number, since it uses less digits than its factorization.

4021443122141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236555477790.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 4021443122141 its reverse (1412213441204), we get a palindrome (5433656563345).

The spelling of 4021443122141 in words is "four trillion, twenty-one billion, four hundred forty-three million, one hundred twenty-two thousand, one hundred forty-one".