2101102200 has 192 divisors, whose sum is σ = 7487244000. Its totient is φ = 540933120.

The previous prime is 2101102189. The next prime is 2101102217. The reversal of 2101102200 is 22011012.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 149892 + ... + 163308.

Almost surely, 2^2101102200 is an apocalyptic number.

2101102200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2101102200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3743622000).

2101102200 is an abundant number, since it is smaller than the sum of its proper divisors (5386141800).

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

2101102200 is a wasteful number, since it uses less digits than its factorization.

2101102200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13471 (or 13456 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 2101102200 is about 45837.7813599219. The cubic root of 2101102200 is about 1280.8031661764.

Adding to 2101102200 its reverse (22011012), we get a palindrome (2123113212).

The spelling of 2101102200 in words is "two billion, one hundred one million, one hundred two thousand, two hundred".