200221000020100 has 36 divisors (see below), whose sum is σ = 434485041709684. Its totient is φ = 80087391406080.

The previous prime is 200221000020089. The next prime is 200221000020157. The reversal of 200221000020100 is 1020000122002.

It can be written as a sum of positive squares in 6 ways, for example, as 14877390122884 + 185343609897216 = 3857122^2 + 13614096^2 .

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 11 ways as a sum of consecutive naturals, for example, 4601997 + ... + 20533396.

Almost surely, 2^{200221000020100} is an apocalyptic number.

200221000020100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200221000020100 is an abundant number, since it is smaller than the sum of its proper divisors (234264041689584).

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

200221000020100 is a wasteful number, since it uses less digits than its factorization.

200221000020100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25215064 (or 25215057 counting only the distinct ones).

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

Adding to 200221000020100 its reverse (1020000122002), we get a palindrome (201241000142102).

The spelling of 200221000020100 in words is "two hundred trillion, two hundred twenty-one billion, twenty thousand, one hundred".