210221100112 has 40 divisors (see below), whose sum is σ = 410617861632. Its totient is φ = 104258380800.

The previous prime is 210221100109. The next prime is 210221100119. The reversal of 210221100112 is 211001122012.

It is a junction number, because it is equal to n+sod(n) for n = 210221100092 and 210221100101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210221100119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 961312 + ... + 1159552.

Almost surely, 2^210221100112 is an apocalyptic number.

It is an amenable number.

210221100112 is a deficient number, since it is larger than the sum of its proper divisors (200396761520).

210221100112 is a wasteful number, since it uses less digits than its factorization.

210221100112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198787 (or 198781 counting only the distinct ones).

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

Adding to 210221100112 its reverse (211001122012), we get a palindrome (421222222124).

The spelling of 210221100112 in words is "two hundred ten billion, two hundred twenty-one million, one hundred thousand, one hundred twelve".