200102101212077 has 2 divisors, whose sum is σ = 200102101212078. Its totient is φ = 200102101212076.

The previous prime is 200102101212049. The next prime is 200102101212109. The reversal of 200102101212077 is 770212101201002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195298556705476 + 4803544506601 = 13974926^2 + 2191699^2 .

It is a cyclic number.

It is not a de Polignac number, because 200102101212077 - 2¹⁰ = 200102101211053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200102101292077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100051050606038 + 100051050606039.

It is an arithmetic number, because the mean of its divisors is an integer number (100051050606039).

Almost surely, 2^{200102101212077} is an apocalyptic number.

It is an amenable number.

200102101212077 is a deficient number, since it is larger than the sum of its proper divisors (1).

200102101212077 is an equidigital number, since it uses as much as digits as its factorization.

200102101212077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 784, while the sum is 26.

Adding to 200102101212077 its reverse (770212101201002), we get a palindrome (970314202413079).

The spelling of 200102101212077 in words is "two hundred trillion, one hundred two billion, one hundred one million, two hundred twelve thousand, seventy-seven".