220001223320 has 32 divisors (see below), whose sum is σ = 512071815600. Its totient is φ = 84965989248.

The previous prime is 220001223217. The next prime is 220001223329. The reversal of 220001223320 is 23322100022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220001223329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94826954 + ... + 94829273.

Almost surely, 2^220001223320 is an apocalyptic number.

220001223320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220001223320 is an abundant number, since it is smaller than the sum of its proper divisors (292070592280).

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

220001223320 is a wasteful number, since it uses less digits than its factorization.

220001223320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189656267 (or 189656263 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 220001223320 its reverse (23322100022), we get a palindrome (243323323342).

The spelling of 220001223320 in words is "two hundred twenty billion, one million, two hundred twenty-three thousand, three hundred twenty".