220220120222177 has 2 divisors, whose sum is σ = 220220120222178. Its totient is φ = 220220120222176.

The previous prime is 220220120222101. The next prime is 220220120222213. The reversal of 220220120222177 is 771222021022022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 177300116837281 + 42920003384896 = 13315409^2 + 6551336^2 .

It is a cyclic number.

It is not a de Polignac number, because 220220120222177 - 2²⁴ = 220220103444961 is a prime.

It is not a weakly prime, because it can be changed into another prime (220220120222477) 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, 110110060111088 + 110110060111089.

It is an arithmetic number, because the mean of its divisors is an integer number (110110060111089).

Almost surely, 2^{220220120222177} is an apocalyptic number.

It is an amenable number.

220220120222177 is a deficient number, since it is larger than the sum of its proper divisors (1).

220220120222177 is an equidigital number, since it uses as much as digits as its factorization.

220220120222177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12544, while the sum is 32.

Adding to 220220120222177 its reverse (771222021022022), we get a palindrome (991442141244199).

The spelling of 220220120222177 in words is "two hundred twenty trillion, two hundred twenty billion, one hundred twenty million, two hundred twenty-two thousand, one hundred seventy-seven".