22210322220 has 108 divisors (see below), whose sum is σ = 69775043520. Its totient is φ = 5718480768.

The previous prime is 22210322219. The next prime is 22210322227. The reversal of 22210322220 is 2222301222.

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 = 22210322193 and 22210322202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22210322227) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 78021 + ... + 224739.

Almost surely, 2^22210322220 is an apocalyptic number.

22210322220 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 22210322220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34887521760).

22210322220 is an abundant number, since it is smaller than the sum of its proper divisors (47564721300).

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

22210322220 is a wasteful number, since it uses less digits than its factorization.

22210322220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146792 (or 146758 counting only the distinct ones).

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

Adding to 22210322220 its reverse (2222301222), we get a palindrome (24432623442).

The spelling of 22210322220 in words is "twenty-two billion, two hundred ten million, three hundred twenty-two thousand, two hundred twenty".