22230302220 has 144 divisors (see below), whose sum is σ = 77140697088. Its totient is φ = 5076224640.

The previous prime is 22230302207. The next prime is 22230302257. The reversal of 22230302220 is 2220303222.

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 = 22230302193 and 22230302202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1361505 + ... + 1377735.

Almost surely, 2^22230302220 is an apocalyptic number.

22230302220 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 22230302220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38570348544).

22230302220 is an abundant number, since it is smaller than the sum of its proper divisors (54910394868).

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

22230302220 is a wasteful number, since it uses less digits than its factorization.

22230302220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17340 (or 17335 counting only the distinct ones).

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

Adding to 22230302220 its reverse (2220303222), we get a palindrome (24450605442).

The spelling of 22230302220 in words is "twenty-two billion, two hundred thirty million, three hundred two thousand, two hundred twenty".