22200332220 has 216 divisors, whose sum is σ = 75038793648. Its totient is φ = 5307793920.

The previous prime is 22200332179. The next prime is 22200332239. The reversal of 22200332220 is 2223300222.

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 = 22200332193 and 22200332202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1582959 + ... + 1596921.

Almost surely, 2^22200332220 is an apocalyptic number.

22200332220 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 22200332220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37519396824).

22200332220 is an abundant number, since it is smaller than the sum of its proper divisors (52838461428).

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

22200332220 is a wasteful number, since it uses less digits than its factorization.

22200332220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14073 (or 14057 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 22200332220 its reverse (2223300222), we get a palindrome (24423632442).

The spelling of 22200332220 in words is "twenty-two billion, two hundred million, three hundred thirty-two thousand, two hundred twenty".