220205941 has 2 divisors, whose sum is σ = 220205942. Its totient is φ = 220205940.

The previous prime is 220205917. The next prime is 220205971. The reversal of 220205941 is 149502022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203632900 + 16573041 = 14270^2 + 4071^2 .

It is a cyclic number.

It is not a de Polignac number, because 220205941 - 2⁷ = 220205813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220205971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110102970 + 110102971.

It is an arithmetic number, because the mean of its divisors is an integer number (110102971).

Almost surely, 2^220205941 is an apocalyptic number.

It is an amenable number.

220205941 is a deficient number, since it is larger than the sum of its proper divisors (1).

220205941 is an equidigital number, since it uses as much as digits as its factorization.

220205941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 220205941 is about 14839.3376199883. The cubic root of 220205941 is about 603.8693826366.

Adding to 220205941 its reverse (149502022), we get a palindrome (369707963).

The spelling of 220205941 in words is "two hundred twenty million, two hundred five thousand, nine hundred forty-one".