200221002100 has 144 divisors (see below), whose sum is σ = 507330028800. Its totient is φ = 68559388800.

The previous prime is 200221002097. The next prime is 200221002127. The reversal of 200221002100 is 1200122002.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30420810 + ... + 30427390.

It is an arithmetic number, because the mean of its divisors is an integer number (3523125200).

Almost surely, 2^200221002100 is an apocalyptic number.

200221002100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200221002100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253665014400).

200221002100 is an abundant number, since it is smaller than the sum of its proper divisors (307109026700).

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

200221002100 is a wasteful number, since it uses less digits than its factorization.

200221002100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7503 (or 7482 counting only the distinct ones).

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

Adding to 200221002100 its reverse (1200122002), we get a palindrome (201421124102).

The spelling of 200221002100 in words is "two hundred billion, two hundred twenty-one million, two thousand, one hundred".