210112021211121 has 8 divisors (see below), whose sum is σ = 311277068460960. Its totient is φ = 140074680807396.

The previous prime is 210112021211107. The next prime is 210112021211161. The reversal of 210112021211121 is 121112120211012.

It is a happy number.

210112021211121 is a `hidden beast` number, since 210 + 1 + 120 + 2 + 1 + 211 + 121 = 666.

210112021211121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 210112021211121 - 2²⁵ = 210111987656689 is a prime.

It is a super-2 number, since 2×210112021211121² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210112021211094 and 210112021211103.

It is not an unprimeable number, because it can be changed into a prime (210112021211161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3890963355735 + ... + 3890963355788.

It is an arithmetic number, because the mean of its divisors is an integer number (38909633557620).

Almost surely, 2^{210112021211121} is an apocalyptic number.

It is an amenable number.

210112021211121 is a deficient number, since it is larger than the sum of its proper divisors (101165047249839).

210112021211121 is an equidigital number, since it uses as much as digits as its factorization.

210112021211121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7781926711532 (or 7781926711526 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 210112021211121 its reverse (121112120211012), we get a palindrome (331224141422133).

The spelling of 210112021211121 in words is "two hundred ten trillion, one hundred twelve billion, twenty-one million, two hundred eleven thousand, one hundred twenty-one".