2110210221 has 16 divisors (see below), whose sum is σ = 3404709504. Its totient is φ = 1134902784.

The previous prime is 2110210199. The next prime is 2110210301. The reversal of 2110210221 is 1220120112.

It is not a de Polignac number, because 2110210221 - 2⁷ = 2110210093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2110210197 and 2110210206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110210321) 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 15 ways as a sum of consecutive naturals, for example, 2955120 + ... + 2955833.

It is an arithmetic number, because the mean of its divisors is an integer number (212794344).

Almost surely, 2^2110210221 is an apocalyptic number.

2110210221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2110210221 is a deficient number, since it is larger than the sum of its proper divisors (1294499283).

2110210221 is a wasteful number, since it uses less digits than its factorization.

2110210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5910980.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2110210221 is about 45937.0245118249. The cubic root of 2110210221 is about 1282.6512067463.

Adding to 2110210221 its reverse (1220120112), we get a palindrome (3330330333).

The spelling of 2110210221 in words is "two billion, one hundred ten million, two hundred ten thousand, two hundred twenty-one".