210121000112 has 20 divisors (see below), whose sum is σ = 421147695120. Its totient is φ = 101437723968.

The previous prime is 210120999989. The next prime is 210121000121. The reversal of 210121000112 is 211000121012.

It is a junction number, because it is equal to n+sod(n) for n = 210121000093 and 210121000102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226423028 + ... + 226423955.

It is an arithmetic number, because the mean of its divisors is an integer number (21057384756).

Almost surely, 2^210121000112 is an apocalyptic number.

It is an amenable number.

210121000112 is an abundant number, since it is smaller than the sum of its proper divisors (211026695008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210121000112 is a wasteful number, since it uses less digits than its factorization.

210121000112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452847020 (or 452847014 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 210121000112 its reverse (211000121012), we get a palindrome (421121121124).

The spelling of 210121000112 in words is "two hundred ten billion, one hundred twenty-one million, one hundred twelve", and thus it is an aban number.