200191002002 has 4 divisors (see below), whose sum is σ = 300286503006. Its totient is φ = 100095501000.

The previous prime is 200191001993. The next prime is 200191002017. The reversal of 200191002002 is 200200191002.

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., 198881213521 + 1309788481 = 445961^2 + 36191^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50047750499 + ... + 50047750502.

Almost surely, 2^200191002002 is an apocalyptic number.

200191002002 is a deficient number, since it is larger than the sum of its proper divisors (100095501004).

200191002002 is a wasteful number, since it uses less digits than its factorization.

200191002002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100095501003.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 200191002002 its reverse (200200191002), we get a palindrome (400391193004).

The spelling of 200191002002 in words is "two hundred billion, one hundred ninety-one million, two thousand, two".