200011221000020 has 12 divisors (see below), whose sum is σ = 420023564100084. Its totient is φ = 80004488400000.

The previous prime is 200011221000001. The next prime is 200011221000083. The reversal of 200011221000020 is 20000122110002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 44624724670276 + 155386496329744 = 6680174^2 + 12465412^2 .

It is a junction number, because it is equal to n+sod(n) for n = 200011220999965 and 200011221000010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5000280524981 + ... + 5000280525020.

It is an arithmetic number, because the mean of its divisors is an integer number (35001963675007).

Almost surely, 2^{200011221000020} is an apocalyptic number.

200011221000020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200011221000020 is an abundant number, since it is smaller than the sum of its proper divisors (220012343100064).

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

200011221000020 is a wasteful number, since it uses less digits than its factorization.

200011221000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10000561050010 (or 10000561050008 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 200011221000020 its reverse (20000122110002), we get a palindrome (220011343110022).

The spelling of 200011221000020 in words is "two hundred trillion, eleven billion, two hundred twenty-one million, twenty", and thus it is an aban number.