200121100201 has 4 divisors (see below), whose sum is σ = 218313927504. Its totient is φ = 181928272900.

The previous prime is 200121100189. The next prime is 200121100241. The reversal of 200121100201 is 102001121002.

200121100201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is not a de Polignac number, because 200121100201 - 2⁷ = 200121100073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200121100241) 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 3 ways as a sum of consecutive naturals, for example, 9096413635 + ... + 9096413656.

It is an arithmetic number, because the mean of its divisors is an integer number (54578481876).

Almost surely, 2^200121100201 is an apocalyptic number.

It is an amenable number.

200121100201 is a deficient number, since it is larger than the sum of its proper divisors (18192827303).

200121100201 is a wasteful number, since it uses less digits than its factorization.

200121100201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18192827302.

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

Adding to 200121100201 its reverse (102001121002), we get a palindrome (302122221203).

The spelling of 200121100201 in words is "two hundred billion, one hundred twenty-one million, one hundred thousand, two hundred one".