200022002018 has 4 divisors (see below), whose sum is σ = 300033003030. Its totient is φ = 100011001008.

The previous prime is 200022001979. The next prime is 200022002021. The reversal of 200022002018 is 810200220002.

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., 116562836569 + 83459165449 = 341413^2 + 288893^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 200022001987 and 200022002005.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50005500503 + ... + 50005500506.

Almost surely, 2^200022002018 is an apocalyptic number.

200022002018 is a deficient number, since it is larger than the sum of its proper divisors (100011001012).

200022002018 is a wasteful number, since it uses less digits than its factorization.

200022002018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100011001011.

The product of its (nonzero) digits is 128, while the sum is 17.

The spelling of 200022002018 in words is "two hundred billion, twenty-two million, two thousand, eighteen".