210112222110021 has 48 divisors (see below), whose sum is σ = 392398134256128. Its totient is φ = 109149206281200.

The previous prime is 210112222109989. The next prime is 210112222110047. The reversal of 210112222110021 is 120011222211012.

210112222110021 is a `hidden beast` number, since 210 + 1 + 1 + 222 + 211 + 0 + 0 + 21 = 666.

It is not a de Polignac number, because 210112222110021 - 2⁵ = 210112222109989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210112222109976 and 210112222110003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210112222110061) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5614652395 + ... + 5614689816.

It is an arithmetic number, because the mean of its divisors is an integer number (8174961130336).

Almost surely, 2^{210112222110021} is an apocalyptic number.

210112222110021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

210112222110021 is a deficient number, since it is larger than the sum of its proper divisors (182285912146107).

210112222110021 is a wasteful number, since it uses less digits than its factorization.

210112222110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11229342244 (or 11229342232 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 210112222110021 its reverse (120011222211012), we get a palindrome (330123444321033).

The spelling of 210112222110021 in words is "two hundred ten trillion, one hundred twelve billion, two hundred twenty-two million, one hundred ten thousand, twenty-one".