201021211110200 has 96 divisors (see below), whose sum is σ = 504965687262960. Its totient is φ = 73981446681600.

The previous prime is 201021211110199. The next prime is 201021211110233. The reversal of 201021211110200 is 2011112120102.

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, 125123381 + ... + 126719780.

Almost surely, 2^{201021211110200} is an apocalyptic number.

201021211110200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201021211110200 is an abundant number, since it is smaller than the sum of its proper divisors (303944476152760).

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

201021211110200 is a wasteful number, since it uses less digits than its factorization.

201021211110200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251843497 (or 251843488 counting only the distinct ones).

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

Adding to 201021211110200 its reverse (2011112120102), we get a palindrome (203032323230302).

The spelling of 201021211110200 in words is "two hundred one trillion, twenty-one billion, two hundred eleven million, one hundred ten thousand, two hundred".