2101200202 has 4 divisors (see below), whose sum is σ = 3151800306. Its totient is φ = 1050600100.

The previous prime is 2101200197. The next prime is 2101200319. The reversal of 2101200202 is 2020021012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2007129601 + 94070601 = 44801^2 + 9699^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525300049 + ... + 525300052.

Almost surely, 2^2101200202 is an apocalyptic number.

2101200202 is a deficient number, since it is larger than the sum of its proper divisors (1050600104).

2101200202 is a wasteful number, since it uses less digits than its factorization.

2101200202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050600103.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2101200202 is about 45838.8503564389. The cubic root of 2101200202 is about 1280.8230794265.

Adding to 2101200202 its reverse (2020021012), we get a palindrome (4121221214).

The spelling of 2101200202 in words is "two billion, one hundred one million, two hundred thousand, two hundred two".