200210220220145 has 4 divisors (see below), whose sum is σ = 240252264264180. Its totient is φ = 160168176176112.

The previous prime is 200210220220111. The next prime is 200210220220147. The reversal of 200210220220145 is 541022022012002.

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

It can be written as a sum of positive squares in 2 ways, for example, as 82254959580304 + 117955260639841 = 9069452^2 + 10860721^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200210220220145 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 200210220220145.

It is not an unprimeable number, because it can be changed into a prime (200210220220147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20021022022010 + ... + 20021022022019.

It is an arithmetic number, because the mean of its divisors is an integer number (60063066066045).

Almost surely, 2^{200210220220145} is an apocalyptic number.

It is an amenable number.

200210220220145 is a deficient number, since it is larger than the sum of its proper divisors (40042044044035).

200210220220145 is an equidigital number, since it uses as much as digits as its factorization.

200210220220145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40042044044034.

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 200210220220145 its reverse (541022022012002), we get a palindrome (741232242232147).

The spelling of 200210220220145 in words is "two hundred trillion, two hundred ten billion, two hundred twenty million, two hundred twenty thousand, one hundred forty-five".