201109200202 has 4 divisors (see below), whose sum is σ = 301663800306. Its totient is φ = 100554600100.

The previous prime is 201109200181. The next prime is 201109200251. The reversal of 201109200202 is 202002901102.

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., 187481206081 + 13627994121 = 432991^2 + 116739^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 201109200202.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50277300049 + ... + 50277300052.

Almost surely, 2^201109200202 is an apocalyptic number.

201109200202 is a deficient number, since it is larger than the sum of its proper divisors (100554600104).

201109200202 is a wasteful number, since it uses less digits than its factorization.

201109200202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100554600103.

The product of its (nonzero) digits is 144, while the sum is 19.

The spelling of 201109200202 in words is "two hundred one billion, one hundred nine million, two hundred thousand, two hundred two".