2320210221 has 96 divisors (see below), whose sum is σ = 3903943680. Its totient is φ = 1219276800.

The previous prime is 2320210219. The next prime is 2320210229. The reversal of 2320210221 is 1220120232.

It is a happy number.

It is not a de Polignac number, because 2320210221 - 2¹ = 2320210219 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2320210221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2320210229) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12818751 + ... + 12818931.

It is an arithmetic number, because the mean of its divisors is an integer number (40666080).

Almost surely, 2^2320210221 is an apocalyptic number.

2320210221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2320210221 is a deficient number, since it is larger than the sum of its proper divisors (1583733459).

2320210221 is a wasteful number, since it uses less digits than its factorization.

2320210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2320210221 is about 48168.5605037145. The cubic root of 2320210221 is about 1323.8611733134.

Adding to 2320210221 its reverse (1220120232), we get a palindrome (3540330453).

The spelling of 2320210221 in words is "two billion, three hundred twenty million, two hundred ten thousand, two hundred twenty-one".