41403201221 has 4 divisors (see below), whose sum is σ = 41403608844. Its totient is φ = 41402793600.

The previous prime is 41403201187. The next prime is 41403201227. The reversal of 41403201221 is 12210230414.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 24644604196 + 16758597025 = 156986^2 + 129455^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41403201221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 41403201193 and 41403201202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41403201227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84431 + ... + 299891.

It is an arithmetic number, because the mean of its divisors is an integer number (10350902211).

Almost surely, 2^41403201221 is an apocalyptic number.

It is an amenable number.

41403201221 is a deficient number, since it is larger than the sum of its proper divisors (407623).

41403201221 is a wasteful number, since it uses less digits than its factorization.

41403201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407622.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 41403201221 its reverse (12210230414), we get a palindrome (53613431635).

The spelling of 41403201221 in words is "forty-one billion, four hundred three million, two hundred one thousand, two hundred twenty-one".