2210343021 has 12 divisors (see below), whose sum is σ = 3198852540. Its totient is φ = 1470730560.

The previous prime is 2210343013. The next prime is 2210343049. The reversal of 2210343021 is 1203430122.

2210343021 is a `hidden beast` number, since 2 + 210 + 3 + 430 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1495368900 + 714974121 = 38670^2 + 26739^2 .

It is not a de Polignac number, because 2210343021 - 2³ = 2210343013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2210342985 and 2210343003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210343001) 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 11 ways as a sum of consecutive naturals, for example, 231006 + ... + 240383.

It is an arithmetic number, because the mean of its divisors is an integer number (266571045).

Almost surely, 2^2210343021 is an apocalyptic number.

It is an amenable number.

2210343021 is a deficient number, since it is larger than the sum of its proper divisors (988509519).

2210343021 is a wasteful number, since it uses less digits than its factorization.

2210343021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471916 (or 471913 counting only the distinct ones).

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

The square root of 2210343021 is about 47014.2852864956. The cubic root of 2210343021 is about 1302.6264496558.

Adding to 2210343021 its reverse (1203430122), we get a palindrome (3413773143).

The spelling of 2210343021 in words is "two billion, two hundred ten million, three hundred forty-three thousand, twenty-one".