201210121200 has 120 divisors (see below), whose sum is σ = 703137960576. Its totient is φ = 48778208000.

The previous prime is 201210121169. The next prime is 201210121213. The reversal of 201210121200 is 2121012102.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 7608396 + ... + 7634795.

Almost surely, 2^201210121200 is an apocalyptic number.

201210121200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201210121200 is an abundant number, since it is smaller than the sum of its proper divisors (501927839376).

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

201210121200 is a wasteful number, since it uses less digits than its factorization.

201210121200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15243223 (or 15243212 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 201210121200 its reverse (2121012102), we get a palindrome (203331133302).

The spelling of 201210121200 in words is "two hundred one billion, two hundred ten million, one hundred twenty-one thousand, two hundred".