200211102012121 has 4 divisors (see below), whose sum is σ = 200362892083200. Its totient is φ = 200059311941044.

The previous prime is 200211102012109. The next prime is 200211102012139. The reversal of 200211102012121 is 121210201112002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 200211102012121 - 2³⁹ = 199661346198233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200211102012095 and 200211102012104.

It is not an unprimeable number, because it can be changed into a prime (200211102012151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75895033561 + ... + 75895036198.

It is an arithmetic number, because the mean of its divisors is an integer number (50090723020800).

Almost surely, 2^{200211102012121} is an apocalyptic number.

It is an amenable number.

200211102012121 is a deficient number, since it is larger than the sum of its proper divisors (151790071079).

200211102012121 is a wasteful number, since it uses less digits than its factorization.

200211102012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151790071078.

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

Adding to 200211102012121 its reverse (121210201112002), we get a palindrome (321421303124123).

The spelling of 200211102012121 in words is "two hundred trillion, two hundred eleven billion, one hundred two million, twelve thousand, one hundred twenty-one".