200111022102121 has 32 divisors (see below), whose sum is σ = 220086293454720. Its totient is φ = 180818411595264.

The previous prime is 200111022102091. The next prime is 200111022102163. The reversal of 200111022102121 is 121201220111002.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200111022102121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200111022102095 and 200111022102104.

It is not an unprimeable number, because it can be changed into a prime (200111022102221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 183412605 + ... + 184500421.

It is an arithmetic number, because the mean of its divisors is an integer number (6877696670460).

Almost surely, 2^{200111022102121} is an apocalyptic number.

It is an amenable number.

200111022102121 is a deficient number, since it is larger than the sum of its proper divisors (19975271352599).

200111022102121 is a wasteful number, since it uses less digits than its factorization.

200111022102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088905.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 200111022102121 its reverse (121201220111002), we get a palindrome (321312242213123).

The spelling of 200111022102121 in words is "two hundred trillion, one hundred eleven billion, twenty-two million, one hundred two thousand, one hundred twenty-one".