20002002122220 has 24 divisors (see below), whose sum is σ = 56005605942384. Its totient is φ = 5333867232576.

The previous prime is 20002002122173. The next prime is 20002002122251. The reversal of 20002002122220 is 2222120020002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20002002122220.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166683350959 + ... + 166683351078.

It is an arithmetic number, because the mean of its divisors is an integer number (2333566914266).

Almost surely, 2^{20002002122220} is an apocalyptic number.

20002002122220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002002122220 is an abundant number, since it is smaller than the sum of its proper divisors (36003603820164).

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

20002002122220 is a wasteful number, since it uses less digits than its factorization.

20002002122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333366702049 (or 333366702047 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 20002002122220 its reverse (2222120020002), we get a palindrome (22224122142222).

The spelling of 20002002122220 in words is "twenty trillion, two billion, two million, one hundred twenty-two thousand, two hundred twenty".