22021320030330 has 128 divisors (see below), whose sum is σ = 56175303679488. Its totient is φ = 5505670397952.

The previous prime is 22021320030293. The next prime is 22021320030377. The reversal of 22021320030330 is 3303002312022.

It is a junction number, because it is equal to n+sod(n) for n = 22021320030297 and 22021320030306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 692630914 + ... + 692662706.

It is an arithmetic number, because the mean of its divisors is an integer number (438869559996).

Almost surely, 2^{22021320030330} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22021320030330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28087651839744).

22021320030330 is an abundant number, since it is smaller than the sum of its proper divisors (34153983649158).

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

22021320030330 is a wasteful number, since it uses less digits than its factorization.

22021320030330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37000.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 22021320030330 its reverse (3303002312022), we get a palindrome (25324322342352).

The spelling of 22021320030330 in words is "twenty-two trillion, twenty-one billion, three hundred twenty million, thirty thousand, three hundred thirty".