200120121001 has 8 divisors (see below), whose sum is σ = 205757572608. Its totient is φ = 194518692000.

The previous prime is 200120120999. The next prime is 200120121013. The reversal of 200120121001 is 100121021002.

200120121001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200120121001 - 2¹ = 200120120999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200120122001) 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 7 ways as a sum of consecutive naturals, for example, 8994385 + ... + 9016606.

It is an arithmetic number, because the mean of its divisors is an integer number (25719696576).

Almost surely, 2^200120121001 is an apocalyptic number.

It is an amenable number.

200120121001 is a deficient number, since it is larger than the sum of its proper divisors (5637451607).

200120121001 is a wasteful number, since it uses less digits than its factorization.

200120121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18011303.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 200120121001 its reverse (100121021002), we get a palindrome (300241142003).

Subtracting from 200120121001 its reverse (100121021002), we obtain a palindrome (99999099999).

It can be divided in two parts, 2001201 and 21001, that added together give a palindrome (2022202).

The spelling of 200120121001 in words is "two hundred billion, one hundred twenty million, one hundred twenty-one thousand, one".