4122001 has 4 divisors (see below), whose sum is σ = 4439092. Its totient is φ = 3804912.

The previous prime is 4121987. The next prime is 4122043. The reversal of 4122001 is 1002214.

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 1382976 + 2739025 = 1176^2 + 1655^2 .

It is a cyclic number.

It is not a de Polignac number, because 4122001 - 2¹⁷ = 3990929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4122301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158526 + ... + 158551.

It is an arithmetic number, because the mean of its divisors is an integer number (1109773).

Almost surely, 2^4122001 is an apocalyptic number.

It is an amenable number.

4122001 is a deficient number, since it is larger than the sum of its proper divisors (317091).

4122001 is a wasteful number, since it uses less digits than its factorization.

4122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317090.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 4122001 is about 2030.2711641552. The cubic root of 4122001 is about 160.3378408327.

Adding to 4122001 its reverse (1002214), we get a palindrome (5124215).

The spelling of 4122001 in words is "four million, one hundred twenty-two thousand, one".