221002000200 has 144 divisors (see below), whose sum is σ = 759459077520. Its totient is φ = 57563291520.

The previous prime is 221002000171. The next prime is 221002000201. The reversal of 221002000200 is 2000200122.

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

It is not an unprimeable number, because it can be changed into a prime (221002000201) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1350262 + ... + 1505061.

Almost surely, 2^221002000200 is an apocalyptic number.

221002000200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221002000200 is an abundant number, since it is smaller than the sum of its proper divisors (538457077320).

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

221002000200 is a wasteful number, since it uses less digits than its factorization.

221002000200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2855388 (or 2855376 counting only the distinct ones).

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

Adding to 221002000200 its reverse (2000200122), we get a palindrome (223002200322).

The spelling of 221002000200 in words is "two hundred twenty-one billion, two million, two hundred", and thus it is an aban number.