210112200121 has 4 divisors (see below), whose sum is σ = 214582672512. Its totient is φ = 205641727732.

The previous prime is 210112200097. The next prime is 210112200163. The reversal of 210112200121 is 121002211012.

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 210112200121 - 2²³ = 210103811513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210112206121) 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 3 ways as a sum of consecutive naturals, for example, 2235236125 + ... + 2235236218.

It is an arithmetic number, because the mean of its divisors is an integer number (53645668128).

Almost surely, 2^210112200121 is an apocalyptic number.

It is an amenable number.

210112200121 is a deficient number, since it is larger than the sum of its proper divisors (4470472391).

210112200121 is an equidigital number, since it uses as much as digits as its factorization.

210112200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4470472390.

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

Adding to 210112200121 its reverse (121002211012), we get a palindrome (331114411133).

The spelling of 210112200121 in words is "two hundred ten billion, one hundred twelve million, two hundred thousand, one hundred twenty-one".