210112301021 has 16 divisors (see below), whose sum is σ = 252787407360. Its totient is φ = 170603515440.

The previous prime is 210112300933. The next prime is 210112301089. The reversal of 210112301021 is 120103211012.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210112301021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 210112300987 and 210112301005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210112301221) 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, 1754426 + ... + 1870356.

It is an arithmetic number, because the mean of its divisors is an integer number (15799212960).

Almost surely, 2^210112301021 is an apocalyptic number.

It is an amenable number.

210112301021 is a deficient number, since it is larger than the sum of its proper divisors (42675106339).

210112301021 is a wasteful number, since it uses less digits than its factorization.

210112301021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129584.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 210112301021 its reverse (120103211012), we get a palindrome (330215512033).

Subtracting from 210112301021 its reverse (120103211012), we obtain a palindrome (90009090009).

The spelling of 210112301021 in words is "two hundred ten billion, one hundred twelve million, three hundred one thousand, twenty-one".