200122122201893 has 2 divisors, whose sum is σ = 200122122201894. Its totient is φ = 200122122201892.

The previous prime is 200122122201889. The next prime is 200122122201907. The reversal of 200122122201893 is 398102221221002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200062721788609 + 59400413284 = 14144353^2 + 243722^2 .

It is a cyclic number.

It is not a de Polignac number, because 200122122201893 - 2² = 200122122201889 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200122122221893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100061061100946 + 100061061100947.

It is an arithmetic number, because the mean of its divisors is an integer number (100061061100947).

Almost surely, 2^{200122122201893} is an apocalyptic number.

It is an amenable number.

200122122201893 is a deficient number, since it is larger than the sum of its proper divisors (1).

200122122201893 is an equidigital number, since it uses as much as digits as its factorization.

200122122201893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 35.

Adding to 200122122201893 its reverse (398102221221002), we get a palindrome (598224343422895).

The spelling of 200122122201893 in words is "two hundred trillion, one hundred twenty-two billion, one hundred twenty-two million, two hundred one thousand, eight hundred ninety-three".