222321213120000 has 400 divisors, whose sum is σ = 779063324434560. Its totient is φ = 56165354496000.

The previous prime is 222321213119963. The next prime is 222321213120007. The reversal of 222321213120000 is 21312123222.

It is a tau number, because it is divible by the number of its divisors (400).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222321213120007) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 12145669 + ... + 24334331.

Almost surely, 2^{222321213120000} is an apocalyptic number.

222321213120000 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 222321213120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (389531662217280).

222321213120000 is an abundant number, since it is smaller than the sum of its proper divisors (556742111314560).

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

222321213120000 is an equidigital number, since it uses as much as digits as its factorization.

222321213120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12188723 (or 12188692 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 222321213120000 its reverse (21312123222), we get a palindrome (222342525243222).

The spelling of 222321213120000 in words is "two hundred twenty-two trillion, three hundred twenty-one billion, two hundred thirteen million, one hundred twenty thousand".