200200121121111 has 16 divisors (see below), whose sum is σ = 267017914775808. Its totient is φ = 133424541588800.

The previous prime is 200200121121109. The next prime is 200200121121139. The reversal of 200200121121111 is 111121121002002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 200200121121111 - 2¹ = 200200121121109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200200121126111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196453651 + ... + 197470091.

It is an arithmetic number, because the mean of its divisors is an integer number (16688619673488).

Almost surely, 2^{200200121121111} is an apocalyptic number.

200200121121111 is a deficient number, since it is larger than the sum of its proper divisors (66817793654697).

200200121121111 is a wasteful number, since it uses less digits than its factorization.

200200121121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037142.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 200200121121111 its reverse (111121121002002), we get a palindrome (311321242123113).

The spelling of 200200121121111 in words is "two hundred trillion, two hundred billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred eleven".