2210332221 has 6 divisors (see below), whose sum is σ = 3192702110. Its totient is φ = 1473554808.

The previous prime is 2210332183. The next prime is 2210332253. The reversal of 2210332221 is 1222330122.

It can be written as a sum of positive squares in only one way, i.e., 1529904996 + 680427225 = 39114^2 + 26085^2 .

It is not a de Polignac number, because 2210332221 - 2¹⁹ = 2209807933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2210332194 and 2210332203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210332291) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122796226 + ... + 122796243.

Almost surely, 2^2210332221 is an apocalyptic number.

It is an amenable number.

2210332221 is a deficient number, since it is larger than the sum of its proper divisors (982369889).

2210332221 is a wasteful number, since it uses less digits than its factorization.

2210332221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245592475 (or 245592472 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2210332221 is about 47014.1704276487. The cubic root of 2210332221 is about 1302.6243280562.

Adding to 2210332221 its reverse (1222330122), we get a palindrome (3432662343).

The spelling of 2210332221 in words is "two billion, two hundred ten million, three hundred thirty-two thousand, two hundred twenty-one".