200012021109877 has 2 divisors, whose sum is σ = 200012021109878. Its totient is φ = 200012021109876.

The previous prime is 200012021109869. The next prime is 200012021109919. The reversal of 200012021109877 is 778901120210002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145021950760036 + 54990070349841 = 12042506^2 + 7415529^2 .

It is a cyclic number.

It is not a de Polignac number, because 200012021109877 - 2³ = 200012021109869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200012021209877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100006010554938 + 100006010554939.

It is an arithmetic number, because the mean of its divisors is an integer number (100006010554939).

Almost surely, 2^{200012021109877} is an apocalyptic number.

It is an amenable number.

200012021109877 is a deficient number, since it is larger than the sum of its proper divisors (1).

200012021109877 is an equidigital number, since it uses as much as digits as its factorization.

200012021109877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 40.

Adding to 200012021109877 its reverse (778901120210002), we get a palindrome (978913141319879).

The spelling of 200012021109877 in words is "two hundred trillion, twelve billion, twenty-one million, one hundred nine thousand, eight hundred seventy-seven".