2222121343200 has 864 divisors, whose sum is σ = 8279975235168. Its totient is φ = 516774297600.

The previous prime is 2222121343193. The next prime is 2222121343219. The reversal of 2222121343200 is 23431212222.

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 143 ways as a sum of consecutive naturals, for example, 784368984 + ... + 784371816.

Almost surely, 2^{2222121343200} is an apocalyptic number.

2222121343200 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 2222121343200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4139987617584).

2222121343200 is an abundant number, since it is smaller than the sum of its proper divisors (6057853891968).

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

2222121343200 is a wasteful number, since it uses less digits than its factorization.

2222121343200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2988 (or 2964 counting only the distinct ones).

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

Adding to 2222121343200 its reverse (23431212222), we get a palindrome (2245552555422).

The spelling of 2222121343200 in words is "two trillion, two hundred twenty-two billion, one hundred twenty-one million, three hundred forty-three thousand, two hundred".