2000122001 has 4 divisors (see below), whose sum is σ = 2105391600. Its totient is φ = 1894852404.

The previous prime is 2000121979. The next prime is 2000122037. The reversal of 2000122001 is 1002210002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1002210002 = 2 ⋅501105001.

It is a cyclic number.

It is not a de Polignac number, because 2000122001 - 2¹⁴ = 2000105617 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 2000122001.

It is not an unprimeable number, because it can be changed into a prime (2000121001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52634771 + ... + 52634808.

It is an arithmetic number, because the mean of its divisors is an integer number (526347900).

Almost surely, 2^2000122001 is an apocalyptic number.

It is an amenable number.

2000122001 is a deficient number, since it is larger than the sum of its proper divisors (105269599).

2000122001 is a wasteful number, since it uses less digits than its factorization.

2000122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105269598.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 2000122001 is about 44722.7235418417. The cubic root of 2000122001 is about 1259.9466679786.

Adding to 2000122001 its reverse (1002210002), we get a palindrome (3002332003).

The spelling of 2000122001 in words is "two billion, one hundred twenty-two thousand, one".