2120112221 has 8 divisors (see below), whose sum is σ = 2128910784. Its totient is φ = 2111326560.

The previous prime is 2120112217. The next prime is 2120112233. The reversal of 2120112221 is 1222110212.

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 2120112221 - 2² = 2120112217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120112196 and 2120112205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120111221) 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, 452336 + ... + 456998.

It is an arithmetic number, because the mean of its divisors is an integer number (266113848).

Almost surely, 2^2120112221 is an apocalyptic number.

It is an amenable number.

2120112221 is a deficient number, since it is larger than the sum of its proper divisors (8798563).

2120112221 is a wasteful number, since it uses less digits than its factorization.

2120112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6451.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2120112221 is about 46044.6763589451. The cubic root of 2120112221 is about 1284.6543243957.

Adding to 2120112221 its reverse (1222110212), we get a palindrome (3342222433).

The spelling of 2120112221 in words is "two billion, one hundred twenty million, one hundred twelve thousand, two hundred twenty-one".