20220020000 has 60 divisors (see below), whose sum is σ = 49744331406. Its totient is φ = 8088000000.

The previous prime is 20220019993. The next prime is 20220020003. The reversal of 20220020000 is 2002202.

It can be written as a sum of positive squares in 5 ways, for example, as 795465616 + 19424554384 = 28204^2 + 139372^2 .

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 20220020000.

It is not an unprimeable number, because it can be changed into a prime (20220020003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 485501 + ... + 525500.

Almost surely, 2^20220020000 is an apocalyptic number.

20220020000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20220020000 is an abundant number, since it is smaller than the sum of its proper divisors (29524311406).

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

20220020000 is an equidigital number, since it uses as much as digits as its factorization.

20220020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011031 (or 1011008 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 8.

Adding to 20220020000 its reverse (2002202), we get a palindrome (20222022202).

The spelling of 20220020000 in words is "twenty billion, two hundred twenty million, twenty thousand".