2321221121200 has 120 divisors (see below), whose sum is σ = 5640228087120. Its totient is φ = 917969894400.

The previous prime is 2321221121171. The next prime is 2321221121203. The reversal of 2321221121200 is 21211221232.

2321221121200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2321221121203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14013262 + ... + 14177938.

It is an arithmetic number, because the mean of its divisors is an integer number (47001900726).

Almost surely, 2^{2321221121200} is an apocalyptic number.

2321221121200 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 2321221121200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2820114043560).

2321221121200 is an abundant number, since it is smaller than the sum of its proper divisors (3319006965920).

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

2321221121200 is a wasteful number, since it uses less digits than its factorization.

2321221121200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165095 (or 165084 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2321221121200 its reverse (21211221232), we get a palindrome (2342432342432).

The spelling of 2321221121200 in words is "two trillion, three hundred twenty-one billion, two hundred twenty-one million, one hundred twenty-one thousand, two hundred".