210200121200 has 60 divisors (see below), whose sum is σ = 505063659720. Its totient is φ = 84070414080.

The previous prime is 210200121191. The next prime is 210200121203. The reversal of 210200121200 is 2121002012.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210200121203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4210787 + ... + 4260413.

It is an arithmetic number, because the mean of its divisors is an integer number (8417727662).

Almost surely, 2^210200121200 is an apocalyptic number.

210200121200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210200121200 is an abundant number, since it is smaller than the sum of its proper divisors (294863538520).

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

210200121200 is a wasteful number, since it uses less digits than its factorization.

210200121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60234 (or 60223 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 210200121200 its reverse (2121002012), we get a palindrome (212321123212).

The spelling of 210200121200 in words is "two hundred ten billion, two hundred million, one hundred twenty-one thousand, two hundred".