400225112401 has 4 divisors (see below), whose sum is σ = 400229002404. Its totient is φ = 400221222400.

The previous prime is 400225112393. The next prime is 400225112423. The reversal of 400225112401 is 104211522004.

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 68623041600 + 331602070801 = 261960^2 + 575849^2 .

It is a cyclic number.

It is not a de Polignac number, because 400225112401 - 2³ = 400225112393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400225112431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1786360 + ... + 1997881.

It is an arithmetic number, because the mean of its divisors is an integer number (100057250601).

Almost surely, 2^400225112401 is an apocalyptic number.

It is an amenable number.

400225112401 is a deficient number, since it is larger than the sum of its proper divisors (3890003).

400225112401 is a wasteful number, since it uses less digits than its factorization.

400225112401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3890002.

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 400225112401 its reverse (104211522004), we get a palindrome (504436634405).

The spelling of 400225112401 in words is "four hundred billion, two hundred twenty-five million, one hundred twelve thousand, four hundred one".