1012200220177 has 2 divisors, whose sum is σ = 1012200220178. Its totient is φ = 1012200220176.

The previous prime is 1012200220117. The next prime is 1012200220183. The reversal of 1012200220177 is 7710220022101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 594200472336 + 417999747841 = 770844^2 + 646529^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012200220177 - 2³¹ = 1010052736529 is a prime.

It is a super-2 number, since 2×1012200220177² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1012200220117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506100110088 + 506100110089.

It is an arithmetic number, because the mean of its divisors is an integer number (506100110089).

Almost surely, 2^{1012200220177} is an apocalyptic number.

It is an amenable number.

1012200220177 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012200220177 is an equidigital number, since it uses as much as digits as its factorization.

1012200220177 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 25.

Adding to 1012200220177 its reverse (7710220022101), we get a palindrome (8722420242278).

The spelling of 1012200220177 in words is "one trillion, twelve billion, two hundred million, two hundred twenty thousand, one hundred seventy-seven".