200211102122121 has 16 divisors (see below), whose sum is σ = 296609938905600. Its totient is φ = 133473663655344.

The previous prime is 200211102122117. The next prime is 200211102122221. The reversal of 200211102122121 is 121221201112002.

200211102122121 is a `hidden beast` number, since 20 + 0 + 211 + 10 + 212 + 212 + 1 = 666.

It is not a de Polignac number, because 200211102122121 - 2² = 200211102122117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200211102122094 and 200211102122103.

It is not an unprimeable number, because it can be changed into a prime (200211102122021) 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, 2020761 + ... + 20112326.

It is an arithmetic number, because the mean of its divisors is an integer number (18538121181600).

Almost surely, 2^{200211102122121} is an apocalyptic number.

It is an amenable number.

200211102122121 is a deficient number, since it is larger than the sum of its proper divisors (96398836783479).

200211102122121 is a wasteful number, since it uses less digits than its factorization.

200211102122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22468125 (or 22468119 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 200211102122121 its reverse (121221201112002), we get a palindrome (321432303234123).

The spelling of 200211102122121 in words is "two hundred trillion, two hundred eleven billion, one hundred two million, one hundred twenty-two thousand, one hundred twenty-one".