220205101 has 2 divisors, whose sum is σ = 220205102. Its totient is φ = 220205100.

The previous prime is 220205077. The next prime is 220205113. The reversal of 220205101 is 101502022.

220205101 is nontrivially palindromic in base 16.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169780900 + 50424201 = 13030^2 + 7101^2 .

It is a cyclic number.

It is not a de Polignac number, because 220205101 - 2¹⁵ = 220172333 is a prime.

It is equal to p_12133201 and since 220205101 and 12133201 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220205201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110102550 + 110102551.

It is an arithmetic number, because the mean of its divisors is an integer number (110102551).

Almost surely, 2^220205101 is an apocalyptic number.

It is an amenable number.

220205101 is a deficient number, since it is larger than the sum of its proper divisors (1).

220205101 is an equidigital number, since it uses as much as digits as its factorization.

220205101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 220205101 is about 14839.3093168112. The cubic root of 220205101 is about 603.8686147934.

Adding to 220205101 its reverse (101502022), we get a palindrome (321707123).

The spelling of 220205101 in words is "two hundred twenty million, two hundred five thousand, one hundred one".