2110020221 has 4 divisors (see below), whose sum is σ = 2113615392. Its totient is φ = 2106425052.

The previous prime is 2110020217. The next prime is 2110020247. The reversal of 2110020221 is 1220200112.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2110020221 - 2² = 2110020217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110020271) 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 3 ways as a sum of consecutive naturals, for example, 1796705 + ... + 1797878.

It is an arithmetic number, because the mean of its divisors is an integer number (528403848).

Almost surely, 2^2110020221 is an apocalyptic number.

It is an amenable number.

2110020221 is a deficient number, since it is larger than the sum of its proper divisors (3595171).

2110020221 is an equidigital number, since it uses as much as digits as its factorization.

2110020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3595170.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2110020221 is about 45934.9564166551. The cubic root of 2110020221 is about 1282.6127096270.

Adding to 2110020221 its reverse (1220200112), we get a palindrome (3330220333).

The spelling of 2110020221 in words is "two billion, one hundred ten million, twenty thousand, two hundred twenty-one".