200212011212121 has 20 divisors (see below), whose sum is σ = 303179155833972. Its totient is φ = 131646253943808.

The previous prime is 200212011212063. The next prime is 200212011212141. The reversal of 200212011212121 is 121212110212002.

200212011212121 is a `hidden beast` number, since 200 + 2 + 120 + 11 + 212 + 121 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 46674857610000 + 153537153602121 = 6831900^2 + 12391011^2 .

It is not a de Polignac number, because 200212011212121 - 2¹⁵ = 200212011179353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200212011212094 and 200212011212103.

It is not an unprimeable number, because it can be changed into a prime (200212011212141) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16929810696 + ... + 16929822521.

Almost surely, 2^{200212011212121} is an apocalyptic number.

It is an amenable number.

200212011212121 is a deficient number, since it is larger than the sum of its proper divisors (102967144621851).

200212011212121 is an equidigital number, since it uses as much as digits as its factorization.

200212011212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33859633302 (or 33859633293 counting only the distinct ones).

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

Adding to 200212011212121 its reverse (121212110212002), we get a palindrome (321424121424123).

The spelling of 200212011212121 in words is "two hundred trillion, two hundred twelve billion, eleven million, two hundred twelve thousand, one hundred twenty-one".