20002002220 has 24 divisors (see below), whose sum is σ = 42006863808. Its totient is φ = 8000294400.

The previous prime is 20002002203. The next prime is 20002002253. The reversal of 20002002220 is 2220020002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 20002002197 and 20002002206.

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, 588285 + ... + 621355.

It is an arithmetic number, because the mean of its divisors is an integer number (1750285992).

Almost surely, 2^20002002220 is an apocalyptic number.

20002002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002002220 is an abundant number, since it is smaller than the sum of its proper divisors (22004861588).

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

20002002220 is a wasteful number, since it uses less digits than its factorization.

20002002220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63321 (or 63319 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

Adding to 20002002220 its reverse (2220020002), we get a palindrome (22222022222).

The spelling of 20002002220 in words is "twenty billion, two million, two thousand, two hundred twenty".