30222121331320 has 256 divisors, whose sum is σ = 72440369971200. Its totient is φ = 11328947712000.

The previous prime is 30222121331299. The next prime is 30222121331399. The reversal of 30222121331320 is 2313312122203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3816402321 + ... + 3816410239.

It is an arithmetic number, because the mean of its divisors is an integer number (282970195200).

Almost surely, 2^{30222121331320} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30222121331320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36220184985600).

30222121331320 is an abundant number, since it is smaller than the sum of its proper divisors (42218248639880).

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

30222121331320 is a wasteful number, since it uses less digits than its factorization.

30222121331320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8550 (or 8546 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 30222121331320 its reverse (2313312122203), we get a palindrome (32535433453523).

The spelling of 30222121331320 in words is "thirty trillion, two hundred twenty-two billion, one hundred twenty-one million, three hundred thirty-one thousand, three hundred twenty".