22212302220 has 96 divisors (see below), whose sum is σ = 69229944000. Its totient is φ = 5912566272.

The previous prime is 22212302219. The next prime is 22212302227. The reversal of 22212302220 is 2220321222.

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 = 22212302193 and 22212302202.

It is not an unprimeable number, because it can be changed into a prime (22212302227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 263856 + ... + 337704.

It is an arithmetic number, because the mean of its divisors is an integer number (721145250).

Almost surely, 2^22212302220 is an apocalyptic number.

22212302220 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 22212302220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34614972000).

22212302220 is an abundant number, since it is smaller than the sum of its proper divisors (47017641780).

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

22212302220 is a wasteful number, since it uses less digits than its factorization.

22212302220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74424 (or 74416 counting only the distinct ones).

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

Adding to 22212302220 its reverse (2220321222), we get a palindrome (24432623442).

The spelling of 22212302220 in words is "twenty-two billion, two hundred twelve million, three hundred two thousand, two hundred twenty".