2101200210 has 64 divisors (see below), whose sum is σ = 5609237760. Its totient is φ = 559716480.

The previous prime is 2101200197. The next prime is 2101200319. The reversal of 2101200210 is 120021012.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2101200192 and 2101200201.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 283350 + ... + 290670.

It is an arithmetic number, because the mean of its divisors is an integer number (87644340).

Almost surely, 2^2101200210 is an apocalyptic number.

2101200210 is an abundant number, since it is smaller than the sum of its proper divisors (3508037550).

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

2101200210 is a wasteful number, since it uses less digits than its factorization.

2101200210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8400 (or 8394 counting only the distinct ones).

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

The square root of 2101200210 is about 45838.8504437011. The cubic root of 2101200210 is about 1280.8230810520.

Adding to 2101200210 its reverse (120021012), we get a palindrome (2221221222).

The spelling of 2101200210 in words is "two billion, one hundred one million, two hundred thousand, two hundred ten".