201201121210200 has 96 divisors (see below), whose sum is σ = 623725994970960. Its totient is φ = 53653415616000.

The previous prime is 201201121210157. The next prime is 201201121210231. The reversal of 201201121210200 is 2012121102102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 201201121210200.

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, 195146442 + ... + 196174758.

Almost surely, 2^{201201121210200} is an apocalyptic number.

201201121210200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201201121210200 is an abundant number, since it is smaller than the sum of its proper divisors (422524873760760).

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

201201121210200 is a wasteful number, since it uses less digits than its factorization.

201201121210200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354437 (or 1354428 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201201121210200 its reverse (2012121102102), we get a palindrome (203213242312302).

The spelling of 201201121210200 in words is "two hundred one trillion, two hundred one billion, one hundred twenty-one million, two hundred ten thousand, two hundred".