200212011121121 has 4 divisors (see below), whose sum is σ = 200217623895744. Its totient is φ = 200206398346500.

The previous prime is 200212011121099. The next prime is 200212011121139. The reversal of 200212011121121 is 121121110212002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 200212011121121 - 2¹⁴ = 200212011104737 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 200212011121121.

It is not an unprimeable number, because it can be changed into a prime (200212011126121) 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 3 ways as a sum of consecutive naturals, for example, 2806333805 + ... + 2806405146.

It is an arithmetic number, because the mean of its divisors is an integer number (50054405973936).

Almost surely, 2^{200212011121121} is an apocalyptic number.

It is an amenable number.

200212011121121 is a deficient number, since it is larger than the sum of its proper divisors (5612774623).

200212011121121 is an equidigital number, since it uses as much as digits as its factorization.

200212011121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5612774622.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 200212011121121 its reverse (121121110212002), we get a palindrome (321333121333123).

The spelling of 200212011121121 in words is "two hundred trillion, two hundred twelve billion, eleven million, one hundred twenty-one thousand, one hundred twenty-one".