200212012211121 has 8 divisors (see below), whose sum is σ = 296610388460960. Its totient is φ = 133474674807396.

The previous prime is 200212012211093. The next prime is 200212012211129. The reversal of 200212012211121 is 121112210212002.

200212012211121 is a `hidden beast` number, since 200 + 2 + 120 + 1 + 221 + 1 + 121 = 666.

It is not a de Polignac number, because 200212012211121 - 2¹⁰ = 200212012210097 is a prime.

It is a super-3 number, since 3×200212012211121³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200212012211094 and 200212012211103.

It is not an unprimeable number, because it can be changed into a prime (200212012211129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3707629855735 + ... + 3707629855788.

It is an arithmetic number, because the mean of its divisors is an integer number (37076298557620).

Almost surely, 2^{200212012211121} is an apocalyptic number.

It is an amenable number.

200212012211121 is a deficient number, since it is larger than the sum of its proper divisors (96398376249839).

200212012211121 is an equidigital number, since it uses as much as digits as its factorization.

200212012211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7415259711532 (or 7415259711526 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 200212012211121 its reverse (121112210212002), we get a palindrome (321324222423123).

The spelling of 200212012211121 in words is "two hundred trillion, two hundred twelve billion, twelve million, two hundred eleven thousand, one hundred twenty-one".