201220200200 has 96 divisors (see below), whose sum is σ = 485059311360. Its totient is φ = 77548012800.

The previous prime is 201220200199. The next prime is 201220200241. The reversal of 201220200200 is 2002022102.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1335914 + ... + 1478886.

It is an arithmetic number, because the mean of its divisors is an integer number (5052701160).

Almost surely, 2^201220200200 is an apocalyptic number.

201220200200 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 201220200200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242529655680).

201220200200 is an abundant number, since it is smaller than the sum of its proper divisors (283839111160).

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

201220200200 is a wasteful number, since it uses less digits than its factorization.

201220200200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143247 (or 143238 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 201220200200 its reverse (2002022102), we get a palindrome (203222222302).

The spelling of 201220200200 in words is "two hundred one billion, two hundred twenty million, two hundred thousand, two hundred".