2110212321 has 16 divisors (see below), whose sum is σ = 3240112128. Its totient is φ = 1196629200.

The previous prime is 2110212317. The next prime is 2110212341. The reversal of 2110212321 is 1232120112.

It is not a de Polignac number, because 2110212321 - 2² = 2110212317 is a prime.

It is a super-4 number, since 4×2110212321⁴ (a number of 38 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2110212321.

It is not an unprimeable number, because it can be changed into a prime (2110212301) 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, 380785 + ... + 386286.

It is an arithmetic number, because the mean of its divisors is an integer number (202507008).

Almost surely, 2^2110212321 is an apocalyptic number.

2110212321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2110212321 is a deficient number, since it is larger than the sum of its proper divisors (1129899807).

2110212321 is a wasteful number, since it uses less digits than its factorization.

2110212321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767212.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2110212321 is about 45937.0473691986. The cubic root of 2110212321 is about 1282.6516322279.

Adding to 2110212321 its reverse (1232120112), we get a palindrome (3342332433).

The spelling of 2110212321 in words is "two billion, one hundred ten million, two hundred twelve thousand, three hundred twenty-one".