200100111010121 has 16 divisors (see below), whose sum is σ = 238629228076800. Its totient is φ = 164056873440768.

The previous prime is 200100111010109. The next prime is 200100111010123. The reversal of 200100111010121 is 121010111001002.

It is a de Polignac number, because none of the positive numbers 2^k-200100111010121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (200100111010123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91847525 + ... + 94000893.

It is an arithmetic number, because the mean of its divisors is an integer number (14914326754800).

Almost surely, 2^{200100111010121} is an apocalyptic number.

It is an amenable number.

200100111010121 is a deficient number, since it is larger than the sum of its proper divisors (38529117066679).

200100111010121 is a wasteful number, since it uses less digits than its factorization.

200100111010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2730568.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 200100111010121 its reverse (121010111001002), we get a palindrome (321110222011123).

The spelling of 200100111010121 in words is "two hundred trillion, one hundred billion, one hundred eleven million, ten thousand, one hundred twenty-one".