200020121201 has 4 divisors (see below), whose sum is σ = 200034704100. Its totient is φ = 200005538304.

The previous prime is 200020121183. The next prime is 200020121321. The reversal of 200020121201 is 102121020002.

It is a happy number.

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 84692640400 + 115327480801 = 291020^2 + 339599^2 .

It is a cyclic number.

It is not a de Polignac number, because 200020121201 - 2¹⁰ = 200020120177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200020121401) 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, 7270856 + ... + 7298313.

It is an arithmetic number, because the mean of its divisors is an integer number (50008676025).

Almost surely, 2^200020121201 is an apocalyptic number.

It is an amenable number.

200020121201 is a deficient number, since it is larger than the sum of its proper divisors (14582899).

200020121201 is a wasteful number, since it uses less digits than its factorization.

200020121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14582898.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 200020121201 its reverse (102121020002), we get a palindrome (302141141203).

The spelling of 200020121201 in words is "two hundred billion, twenty million, one hundred twenty-one thousand, two hundred one".