4012120004201 has 4 divisors (see below), whose sum is σ = 4012148724804. Its totient is φ = 4012091283600.

The previous prime is 4012120004077. The next prime is 4012120004279. The reversal of 4012120004201 is 1024000212104.

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 2702752440025 + 1309367564176 = 1644005^2 + 1144276^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4012120004201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4012120004201.

It is not an unprimeable number, because it can be changed into a prime (4012120004281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14149730 + ... + 14430491.

It is an arithmetic number, because the mean of its divisors is an integer number (1003037181201).

Almost surely, 2^{4012120004201} is an apocalyptic number.

It is an amenable number.

4012120004201 is a deficient number, since it is larger than the sum of its proper divisors (28720603).

4012120004201 is a wasteful number, since it uses less digits than its factorization.

4012120004201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28720602.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 4012120004201 its reverse (1024000212104), we get a palindrome (5036120216305).

The spelling of 4012120004201 in words is "four trillion, twelve billion, one hundred twenty million, four thousand, two hundred one".