200011122121 has 16 divisors (see below), whose sum is σ = 207343825920. Its totient is φ = 192813603840.

The previous prime is 200011122109. The next prime is 200011122127. The reversal of 200011122121 is 121221110002.

200011122121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200011122121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200011122127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6592216 + ... + 6622486.

It is an arithmetic number, because the mean of its divisors is an integer number (12958989120).

Almost surely, 2^200011122121 is an apocalyptic number.

It is an amenable number.

200011122121 is a deficient number, since it is larger than the sum of its proper divisors (7332703799).

200011122121 is a wasteful number, since it uses less digits than its factorization.

200011122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32496.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 200011122121 its reverse (121221110002), we get a palindrome (321232232123).

The spelling of 200011122121 in words is "two hundred billion, eleven million, one hundred twenty-two thousand, one hundred twenty-one".