220112220220 has 36 divisors (see below), whose sum is σ = 491025439800. Its totient is φ = 82865774848.

The previous prime is 220112220173. The next prime is 220112220221. The reversal of 220112220220 is 22022211022.

It is a junction number, because it is equal to n+sod(n) for n = 220112220194 and 220112220203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220112220221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19035070 + ... + 19046629.

It is an arithmetic number, because the mean of its divisors is an integer number (13639595550).

Almost surely, 2^220112220220 is an apocalyptic number.

220112220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220112220220 is an abundant number, since it is smaller than the sum of its proper divisors (270913219580).

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

220112220220 is a wasteful number, since it uses less digits than its factorization.

220112220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38081742 (or 38081723 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 220112220220 its reverse (22022211022), we get a palindrome (242134431242).

The spelling of 220112220220 in words is "two hundred twenty billion, one hundred twelve million, two hundred twenty thousand, two hundred twenty".