20020232210177 has 2 divisors, whose sum is σ = 20020232210178. Its totient is φ = 20020232210176.

The previous prime is 20020232210129. The next prime is 20020232210179. The reversal of 20020232210177 is 77101223202002.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20018474588401 + 1757621776 = 4474201^2 + 41924^2 .

It is a cyclic number.

It is not a de Polignac number, because 20020232210177 - 2¹⁸ = 20020231948033 is a prime.

Together with 20020232210179, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20020232210179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010116105088 + 10010116105089.

It is an arithmetic number, because the mean of its divisors is an integer number (10010116105089).

Almost surely, 2^{20020232210177} is an apocalyptic number.

It is an amenable number.

20020232210177 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020232210177 is an equidigital number, since it uses as much as digits as its factorization.

20020232210177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 29.

Adding to 20020232210177 its reverse (77101223202002), we get a palindrome (97121455412179).

The spelling of 20020232210177 in words is "twenty trillion, twenty billion, two hundred thirty-two million, two hundred ten thousand, one hundred seventy-seven".