200212120120121 has 16 divisors (see below), whose sum is σ = 207650570529600. Its totient is φ = 192915809327808.

The previous prime is 200212120120097. The next prime is 200212120120123. The reversal of 200212120120121 is 121021021212002.

It is a cyclic number.

It is not a de Polignac number, because 200212120120121 - 2¹⁰ = 200212120119097 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 200212120120121.

It is not an unprimeable number, because it can be changed into a prime (200212120120123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92194091 + ... + 94340736.

It is an arithmetic number, because the mean of its divisors is an integer number (12978160658100).

Almost surely, 2^{200212120120121} is an apocalyptic number.

It is an amenable number.

200212120120121 is a deficient number, since it is larger than the sum of its proper divisors (7438450409479).

200212120120121 is a wasteful number, since it uses less digits than its factorization.

200212120120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186535208.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 200212120120121 its reverse (121021021212002), we get a palindrome (321233141332123).

The spelling of 200212120120121 in words is "two hundred trillion, two hundred twelve billion, one hundred twenty million, one hundred twenty thousand, one hundred twenty-one".