200202221997851 has 16 divisors (see below), whose sum is σ = 206674723135584. Its totient is φ = 193812357709824.

The previous prime is 200202221997829. The next prime is 200202221997853. The reversal of 200202221997851 is 158799122202002.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200202221997851 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 200202221997851.

It is not an unprimeable number, because it can be changed into a prime (200202221997853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292446875 + ... + 293130651.

It is an arithmetic number, because the mean of its divisors is an integer number (12917170195974).

Almost surely, 2^{200202221997851} is an apocalyptic number.

200202221997851 is a deficient number, since it is larger than the sum of its proper divisors (6472501137733).

200202221997851 is a wasteful number, since it uses less digits than its factorization.

200202221997851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744190.

The product of its (nonzero) digits is 725760, while the sum is 50.

The spelling of 200202221997851 in words is "two hundred trillion, two hundred two billion, two hundred twenty-one million, nine hundred ninety-seven thousand, eight hundred fifty-one".