210101221110200 has 96 divisors (see below), whose sum is σ = 587651535811200. Its totient is φ = 68243404141440.

The previous prime is 210101221110197. The next prime is 210101221110203. The reversal of 210101221110200 is 2011122101012.

It is an interprime number because it is at equal distance from previous prime (210101221110197) and next prime (210101221110203).

It is a super-2 number, since 2×210101221110200² (a number of 29 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210101221110203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3949244474 + ... + 3949297673.

It is an arithmetic number, because the mean of its divisors is an integer number (6121370164700).

Almost surely, 2^{210101221110200} is an apocalyptic number.

210101221110200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210101221110200 is an abundant number, since it is smaller than the sum of its proper divisors (377550314701000).

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

210101221110200 is a wasteful number, since it uses less digits than its factorization.

210101221110200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7898542189 (or 7898542180 counting only the distinct ones).

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

Adding to 210101221110200 its reverse (2011122101012), we get a palindrome (212112343211212).

The spelling of 210101221110200 in words is "two hundred ten trillion, one hundred one billion, two hundred twenty-one million, one hundred ten thousand, two hundred".