400044004112201 has 16 divisors (see below), whose sum is σ = 405590319912960. Its totient is φ = 394509779589120.

The previous prime is 400044004112197. The next prime is 400044004112237. The reversal of 400044004112201 is 102211400440004.

It is a cyclic number.

It is not a de Polignac number, because 400044004112201 - 2² = 400044004112197 is a prime.

It is a super-2 number, since 2×400044004112201² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400044004112261) 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, 2674713461 + ... + 2674863021.

It is an arithmetic number, because the mean of its divisors is an integer number (25349394994560).

Almost surely, 2^{400044004112201} is an apocalyptic number.

It is an amenable number.

400044004112201 is a deficient number, since it is larger than the sum of its proper divisors (5546315800759).

400044004112201 is a wasteful number, since it uses less digits than its factorization.

400044004112201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189736.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 400044004112201 its reverse (102211400440004), we get a palindrome (502255404552205).

The spelling of 400044004112201 in words is "four hundred trillion, forty-four billion, four million, one hundred twelve thousand, two hundred one".