2112110221 has 8 divisors (see below), whose sum is σ = 2282621600. Its totient is φ = 1942747632.

The previous prime is 2112110219. The next prime is 2112110227. The reversal of 2112110221 is 1220112112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2112110221 - 2¹ = 2112110219 is a prime.

It is a super-2 number, since 2×2112110221² = 8922019171305337682, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112110227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283371 + ... + 290728.

It is an arithmetic number, because the mean of its divisors is an integer number (285327700).

Almost surely, 2^2112110221 is an apocalyptic number.

It is an amenable number.

2112110221 is a deficient number, since it is larger than the sum of its proper divisors (170511379).

2112110221 is a wasteful number, since it uses less digits than its factorization.

2112110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574395.

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

The square root of 2112110221 is about 45957.7003449912. The cubic root of 2112110221 is about 1283.0360509056.

Adding to 2112110221 its reverse (1220112112), we get a palindrome (3332222333).

The spelling of 2112110221 in words is "two billion, one hundred twelve million, one hundred ten thousand, two hundred twenty-one".