41222221 has 2 divisors, whose sum is σ = 41222222. Its totient is φ = 41222220.

The previous prime is 41222201. The next prime is 41222227. The reversal of 41222221 is 12222214.

41222221 is nontrivially palindromic in base 14.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24860196 + 16362025 = 4986^2 + 4045^2 .

It is a cyclic number.

It is not a de Polignac number, because 41222221 - 2⁵ = 41222189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 41222195 and 41222204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41222227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20611110 + 20611111.

It is an arithmetic number, because the mean of its divisors is an integer number (20611111).

Almost surely, 2^41222221 is an apocalyptic number.

It is an amenable number.

41222221 is a deficient number, since it is larger than the sum of its proper divisors (1).

41222221 is an equidigital number, since it uses as much as digits as its factorization.

41222221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 128, while the sum is 16.

The square root of 41222221 is about 6420.4533329041. The cubic root of 41222221 is about 345.4435826098.

Adding to 41222221 its reverse (12222214), we get a palindrome (53444435).

It can be divided in two parts, 4 and 1222221, that multiplied together give a palindrome (4888884).

The spelling of 41222221 in words is "forty-one million, two hundred twenty-two thousand, two hundred twenty-one".