200212122100121 has 16 divisors (see below), whose sum is σ = 201905078592000. Its totient is φ = 198526362144768.

The previous prime is 200212122100097. The next prime is 200212122100157. The reversal of 200212122100121 is 121001221212002.

It is a cyclic number.

It is not a de Polignac number, because 200212122100121 - 2¹⁰ = 200212122099097 is a prime.

It is a super-4 number, since 4×200212122100121⁴ (a number of 58 digits) contains 4444 as substring.

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 200212122100121.

It is not an unprimeable number, because it can be changed into a prime (200212122100171) 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, 996480530 + ... + 996681428.

It is an arithmetic number, because the mean of its divisors is an integer number (12619067412000).

Almost surely, 2^{200212122100121} is an apocalyptic number.

It is an amenable number.

200212122100121 is a deficient number, since it is larger than the sum of its proper divisors (1692956491879).

200212122100121 is a wasteful number, since it uses less digits than its factorization.

200212122100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218768.

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

Adding to 200212122100121 its reverse (121001221212002), we get a palindrome (321213343312123).

The spelling of 200212122100121 in words is "two hundred trillion, two hundred twelve billion, one hundred twenty-two million, one hundred thousand, one hundred twenty-one".