220420241 has 2 divisors, whose sum is σ = 220420242. Its totient is φ = 220420240.

The previous prime is 220420229. The next prime is 220420243. The reversal of 220420241 is 142024022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132342016 + 88078225 = 11504^2 + 9385^2 .

It is a cyclic number.

It is not a de Polignac number, because 220420241 - 2¹⁸ = 220158097 is a prime.

Together with 220420243, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (220420243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110210120 + 110210121.

It is an arithmetic number, because the mean of its divisors is an integer number (110210121).

Almost surely, 2^220420241 is an apocalyptic number.

It is an amenable number.

220420241 is a deficient number, since it is larger than the sum of its proper divisors (1).

220420241 is an equidigital number, since it uses as much as digits as its factorization.

220420241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 220420241 is about 14846.5565367866. The cubic root of 220420241 is about 604.0652103110.

Adding to 220420241 its reverse (142024022), we get a palindrome (362444263).

The spelling of 220420241 in words is "two hundred twenty million, four hundred twenty thousand, two hundred forty-one".