220949651701 has 2 divisors, whose sum is σ = 220949651702. Its totient is φ = 220949651700.

The previous prime is 220949651651. The next prime is 220949651743. The reversal of 220949651701 is 107156949022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118452988900 + 102496662801 = 344170^2 + 320151^2 .

It is a cyclic number.

It is not a de Polignac number, because 220949651701 - 2⁹ = 220949651189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220949651201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110474825850 + 110474825851.

It is an arithmetic number, because the mean of its divisors is an integer number (110474825851).

Almost surely, 2^220949651701 is an apocalyptic number.

It is an amenable number.

220949651701 is a deficient number, since it is larger than the sum of its proper divisors (1).

220949651701 is an equidigital number, since it uses as much as digits as its factorization.

220949651701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 46.

The spelling of 220949651701 in words is "two hundred twenty billion, nine hundred forty-nine million, six hundred fifty-one thousand, seven hundred one".