20002200021000 has 160 divisors (see below), whose sum is σ = 69918801689880. Its totient is φ = 5333919984000.

The previous prime is 20002200020987. The next prime is 20002200021019. The reversal of 20002200021000 is 12000220002.

It can be written as a sum of positive squares in 4 ways, for example, as 3932027248356 + 16070172772644 = 1982934^2 + 4008762^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 123389371 + ... + 123551370.

Almost surely, 2^{20002200021000} is an apocalyptic number.

20002200021000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002200021000 is an abundant number, since it is smaller than the sum of its proper divisors (49916601668880).

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

20002200021000 is a wasteful number, since it uses less digits than its factorization.

20002200021000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246940774 (or 246940751 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 20002200021000 its reverse (12000220002), we get a palindrome (20014200241002).

The spelling of 20002200021000 in words is "twenty trillion, two billion, two hundred million, twenty-one thousand".