404042122141201 has 4 divisors (see below), whose sum is σ = 404926240570852. Its totient is φ = 403158003711552.

The previous prime is 404042122141159. The next prime is 404042122141381. The reversal of 404042122141201 is 102141221240404.

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 199260326721600 + 204781795419601 = 14115960^2 + 14310199^2 .

It is a cyclic number.

It is not a de Polignac number, because 404042122141201 - 2²³ = 404042113752593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 404042122141201.

It is not an unprimeable number, because it can be changed into a prime (404042122141501) 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, 442059214140 + ... + 442059215053.

It is an arithmetic number, because the mean of its divisors is an integer number (101231560142713).

Almost surely, 2^{404042122141201} is an apocalyptic number.

It is an amenable number.

404042122141201 is a deficient number, since it is larger than the sum of its proper divisors (884118429651).

404042122141201 is an equidigital number, since it uses as much as digits as its factorization.

404042122141201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884118429650.

The product of its (nonzero) digits is 4096, while the sum is 28.

Adding to 404042122141201 its reverse (102141221240404), we get a palindrome (506183343381605).

The spelling of 404042122141201 in words is "four hundred four trillion, forty-two billion, one hundred twenty-two million, one hundred forty-one thousand, two hundred one".