220242677 has 2 divisors, whose sum is σ = 220242678. Its totient is φ = 220242676.

The previous prime is 220242629. The next prime is 220242683. The reversal of 220242677 is 776242022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206037316 + 14205361 = 14354^2 + 3769^2 .

It is a cyclic number.

It is not a de Polignac number, because 220242677 - 2¹⁶ = 220177141 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220242697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110121338 + 110121339.

It is an arithmetic number, because the mean of its divisors is an integer number (110121339).

Almost surely, 2^220242677 is an apocalyptic number.

It is an amenable number.

220242677 is a deficient number, since it is larger than the sum of its proper divisors (1).

220242677 is an equidigital number, since it uses as much as digits as its factorization.

220242677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 220242677 is about 14840.5753594664. The cubic root of 220242677 is about 603.9029610709.

Adding to 220242677 its reverse (776242022), we get a palindrome (996484699).

The spelling of 220242677 in words is "two hundred twenty million, two hundred forty-two thousand, six hundred seventy-seven".