220020010220177 has 2 divisors, whose sum is σ = 220020010220178. Its totient is φ = 220020010220176.

The previous prime is 220020010220099. The next prime is 220020010220287. The reversal of 220020010220177 is 771022010020022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219110779316881 + 909230903296 = 14802391^2 + 953536^2 .

It is a cyclic number.

It is not a de Polignac number, because 220020010220177 - 2²² = 220020006025873 is a prime.

It is a super-2 number, since 2×220020010220177² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220020010220377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110010005110088 + 110010005110089.

It is an arithmetic number, because the mean of its divisors is an integer number (110010005110089).

Almost surely, 2^{220020010220177} is an apocalyptic number.

It is an amenable number.

220020010220177 is a deficient number, since it is larger than the sum of its proper divisors (1).

220020010220177 is an equidigital number, since it uses as much as digits as its factorization.

220020010220177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1568, while the sum is 26.

Adding to 220020010220177 its reverse (771022010020022), we get a palindrome (991042020240199).

The spelling of 220020010220177 in words is "two hundred twenty trillion, twenty billion, ten million, two hundred twenty thousand, one hundred seventy-seven".