22020312220 has 24 divisors (see below), whose sum is σ = 46526359824. Its totient is φ = 8754086016.

The previous prime is 22020312187. The next prime is 22020312233. The reversal of 22020312220 is 2221302022.

It is a junction number, because it is equal to n+sod(n) for n = 22020312194 and 22020312203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3374089 + ... + 3380608.

It is an arithmetic number, because the mean of its divisors is an integer number (1938598326).

Almost surely, 2^22020312220 is an apocalyptic number.

22020312220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22020312220 is an abundant number, since it is smaller than the sum of its proper divisors (24506047604).

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

22020312220 is a wasteful number, since it uses less digits than its factorization.

22020312220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6754869 (or 6754867 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 22020312220 its reverse (2221302022), we get a palindrome (24241614242).

The spelling of 22020312220 in words is "twenty-two billion, twenty million, three hundred twelve thousand, two hundred twenty".