2002220020 has 12 divisors (see below), whose sum is σ = 4204662084. Its totient is φ = 800888000.

The previous prime is 2002219991. The next prime is 2002220029. The reversal of 2002220020 is 200222002.

It can be written as a sum of positive squares in 2 ways, for example, as 621205776 + 1381014244 = 24924^2 + 37162^2 .

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 = 2002219979 and 2002220006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002220029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50055481 + ... + 50055520.

It is an arithmetic number, because the mean of its divisors is an integer number (350388507).

Almost surely, 2^2002220020 is an apocalyptic number.

2002220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002220020 is an abundant number, since it is smaller than the sum of its proper divisors (2202442064).

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

2002220020 is a wasteful number, since it uses less digits than its factorization.

2002220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100111010 (or 100111008 counting only the distinct ones).

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

The square root of 2002220020 is about 44746.1732442004. The cubic root of 2002220020 is about 1260.3870525031.

2002220020 divided by its sum of digits (10) gives a palindrome (200222002).

Adding to 2002220020 its reverse (200222002), we get a palindrome (2202442022).

The spelling of 2002220020 in words is "two billion, two million, two hundred twenty thousand, twenty".