2321222200 has 96 divisors (see below), whose sum is σ = 5905872000. Its totient is φ = 841443200.

The previous prime is 2321222179. The next prime is 2321222209. The reversal of 2321222200 is 22221232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321222209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 788331 + ... + 791269.

It is an arithmetic number, because the mean of its divisors is an integer number (61519500).

Almost surely, 2^2321222200 is an apocalyptic number.

2321222200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2321222200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2952936000).

2321222200 is an abundant number, since it is smaller than the sum of its proper divisors (3584649800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2321222200 is a wasteful number, since it uses less digits than its factorization.

2321222200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3325 (or 3316 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2321222200 is about 48179.0639178471. The cubic root of 2321222200 is about 1324.0536163609.

Adding to 2321222200 its reverse (22221232), we get a palindrome (2343443432).

The spelling of 2321222200 in words is "two billion, three hundred twenty-one million, two hundred twenty-two thousand, two hundred".