2212321204320 has 192 divisors, whose sum is σ = 7250794729920. Its totient is φ = 566315982848.

The previous prime is 2212321204279. The next prime is 2212321204343. The reversal of 2212321204320 is 234021232122.

It is a super-2 number, since 2×2212321204320² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1948822 + ... + 2867498.

It is an arithmetic number, because the mean of its divisors is an integer number (37764555885).

Almost surely, 2^{2212321204320} is an apocalyptic number.

2212321204320 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 2212321204320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3625397364960).

2212321204320 is an abundant number, since it is smaller than the sum of its proper divisors (5038473525600).

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

2212321204320 is a wasteful number, since it uses less digits than its factorization.

2212321204320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918897 (or 918889 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 2212321204320 its reverse (234021232122), we get a palindrome (2446342436442).

The spelling of 2212321204320 in words is "two trillion, two hundred twelve billion, three hundred twenty-one million, two hundred four thousand, three hundred twenty".