41004201221 has 2 divisors, whose sum is σ = 41004201222. Its totient is φ = 41004201220.

The previous prime is 41004201143. The next prime is 41004201233. The reversal of 41004201221 is 12210240014.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40850068996 + 154132225 = 202114^2 + 12415^2 .

It is a cyclic number.

It is not a de Polignac number, because 41004201221 - 2¹⁰ = 41004200197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 41004201221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41004251221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20502100610 + 20502100611.

It is an arithmetic number, because the mean of its divisors is an integer number (20502100611).

Almost surely, 2^41004201221 is an apocalyptic number.

It is an amenable number.

41004201221 is a deficient number, since it is larger than the sum of its proper divisors (1).

41004201221 is an equidigital number, since it uses as much as digits as its factorization.

41004201221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 41004201221 its reverse (12210240014), we get a palindrome (53214441235).

The spelling of 41004201221 in words is "forty-one billion, four million, two hundred one thousand, two hundred twenty-one".