4042400201121 has 16 divisors (see below), whose sum is σ = 5475531196160. Its totient is φ = 2652319313280.

The previous prime is 4042400201111. The next prime is 4042400201143. The reversal of 4042400201121 is 1211020042404.

It is not a de Polignac number, because 4042400201121 - 2²⁶ = 4042333092257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4042400201111) 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, 27172690 + ... + 27321051.

It is an arithmetic number, because the mean of its divisors is an integer number (342220699760).

Almost surely, 2^{4042400201121} is an apocalyptic number.

It is an amenable number.

4042400201121 is a deficient number, since it is larger than the sum of its proper divisors (1433130995039).

4042400201121 is a wasteful number, since it uses less digits than its factorization.

4042400201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54494136.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 4042400201121 its reverse (1211020042404), we get a palindrome (5253420243525).

The spelling of 4042400201121 in words is "four trillion, forty-two billion, four hundred million, two hundred one thousand, one hundred twenty-one".