2110332221 has 4 divisors (see below), whose sum is σ = 2111088444. Its totient is φ = 2109576000.

The previous prime is 2110332173. The next prime is 2110332229. The reversal of 2110332221 is 1222330112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1599120121 + 511212100 = 39989^2 + 22610^2 .

It is a cyclic number.

It is not a de Polignac number, because 2110332221 - 2³⁰ = 1036590397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2110332221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110332229) 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, 373910 + ... + 379511.

It is an arithmetic number, because the mean of its divisors is an integer number (527772111).

Almost surely, 2^2110332221 is an apocalyptic number.

It is an amenable number.

2110332221 is a deficient number, since it is larger than the sum of its proper divisors (756223).

2110332221 is an equidigital number, since it uses as much as digits as its factorization.

2110332221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756222.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2110332221 is about 45938.3523975338. The cubic root of 2110332221 is about 1282.6759247310.

Adding to 2110332221 its reverse (1222330112), we get a palindrome (3332662333).

The spelling of 2110332221 in words is "two billion, one hundred ten million, three hundred thirty-two thousand, two hundred twenty-one".