20002220220220 has 48 divisors (see below), whose sum is σ = 48116709946368. Its totient is φ = 6841992444480.

The previous prime is 20002220220173. The next prime is 20002220220233. The reversal of 20002220220220 is 2202202220002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20002220220194 and 20002220220203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165685602 + ... + 165806281.

It is an arithmetic number, because the mean of its divisors is an integer number (1002431457216).

Almost surely, 2^{20002220220220} is an apocalyptic number.

20002220220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002220220220 is an abundant number, since it is smaller than the sum of its proper divisors (28114489726148).

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

20002220220220 is a wasteful number, since it uses less digits than its factorization.

20002220220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331492330 (or 331492328 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 20002220220220 its reverse (2202202220002), we get a palindrome (22204422440222).

The spelling of 20002220220220 in words is "twenty trillion, two billion, two hundred twenty million, two hundred twenty thousand, two hundred twenty".