22020221322 has 48 divisors (see below), whose sum is σ = 53029855008. Its totient is φ = 6546889440.

The previous prime is 22020221257. The next prime is 22020221339. The reversal of 22020221322 is 22312202022.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22020221295 and 22020221304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1038688 + ... + 1059675.

It is an arithmetic number, because the mean of its divisors is an integer number (1104788646).

Almost surely, 2^22020221322 is an apocalyptic number.

22020221322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22020221322 is an abundant number, since it is smaller than the sum of its proper divisors (31009633686).

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

22020221322 is a wasteful number, since it uses less digits than its factorization.

22020221322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098435 (or 2098432 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 22020221322 its reverse (22312202022), we get a palindrome (44332423344).

It can be divided in two parts, 22020 and 221322, that added together give a palindrome (243342).

The spelling of 22020221322 in words is "twenty-two billion, twenty million, two hundred twenty-one thousand, three hundred twenty-two".