2003220020 has 12 divisors (see below), whose sum is σ = 4206762084. Its totient is φ = 801288000.

The previous prime is 2003220019. The next prime is 2003220047. The reversal of 2003220020 is 200223002.

It can be written as a sum of positive squares in 2 ways, for example, as 1148125456 + 855094564 = 33884^2 + 29242^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2003219983 and 2003220010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50080481 + ... + 50080520.

It is an arithmetic number, because the mean of its divisors is an integer number (350563507).

Almost surely, 2^2003220020 is an apocalyptic number.

2003220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2003220020 is an abundant number, since it is smaller than the sum of its proper divisors (2203542064).

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

2003220020 is a wasteful number, since it uses less digits than its factorization.

2003220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100161010 (or 100161008 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 2003220020 is about 44757.3459892340. The cubic root of 2003220020 is about 1260.5968491732.

Adding to 2003220020 its reverse (200223002), we get a palindrome (2203443022).

The spelling of 2003220020 in words is "two billion, three million, two hundred twenty thousand, twenty".