210121110210200 has 96 divisors (see below), whose sum is σ = 573411585842400. Its totient is φ = 70094455280640.

The previous prime is 210121110210173. The next prime is 210121110210257. The reversal of 210121110210200 is 2012011121012.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

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, 2028144245 + ... + 2028247844.

It is an arithmetic number, because the mean of its divisors is an integer number (5973037352525).

Almost surely, 2^{210121110210200} is an apocalyptic number.

210121110210200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210121110210200 is an abundant number, since it is smaller than the sum of its proper divisors (363290475632200).

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

210121110210200 is a wasteful number, since it uses less digits than its factorization.

210121110210200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4056392149 (or 4056392140 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 210121110210200 its reverse (2012011121012), we get a palindrome (212133121331212).

The spelling of 210121110210200 in words is "two hundred ten trillion, one hundred twenty-one billion, one hundred ten million, two hundred ten thousand, two hundred".