2000221020100 has 18 divisors (see below), whose sum is σ = 4340479613834. Its totient is φ = 800088408000.

The previous prime is 2000221020079. The next prime is 2000221020121. The reversal of 2000221020100 is 10201220002.

It is an interprime number because it is at equal distance from previous prime (2000221020079) and next prime (2000221020121).

It can be written as a sum of positive squares in 3 ways, for example, as 15509215296 + 1984711804804 = 124536^2 + 1408798^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10001105001 + ... + 10001105200.

Almost surely, 2^{2000221020100} is an apocalyptic number.

2000221020100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2000221020100 is an abundant number, since it is smaller than the sum of its proper divisors (2340258593734).

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

2000221020100 is a wasteful number, since it uses less digits than its factorization.

2000221020100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20002210215 (or 20002210208 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 2000221020100 its reverse (10201220002), we get a palindrome (2010422240102).

The spelling of 2000221020100 in words is "two trillion, two hundred twenty-one million, twenty thousand, one hundred".