20002010220077 has 2 divisors, whose sum is σ = 20002010220078. Its totient is φ = 20002010220076.

The previous prime is 20002010219987. The next prime is 20002010220089. The reversal of 20002010220077 is 77002201020002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10005448333321 + 9996561886756 = 3163139^2 + 3161734^2 .

It is a cyclic number.

It is not a de Polignac number, because 20002010220077 - 2¹⁰ = 20002010219053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20002010220097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001005110038 + 10001005110039.

It is an arithmetic number, because the mean of its divisors is an integer number (10001005110039).

Almost surely, 2^{20002010220077} is an apocalyptic number.

It is an amenable number.

20002010220077 is a deficient number, since it is larger than the sum of its proper divisors (1).

20002010220077 is an equidigital number, since it uses as much as digits as its factorization.

20002010220077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 784, while the sum is 23.

Adding to 20002010220077 its reverse (77002201020002), we get a palindrome (97004211240079).

The spelling of 20002010220077 in words is "twenty trillion, two billion, ten million, two hundred twenty thousand, seventy-seven".