41231201221 has 16 divisors (see below), whose sum is σ = 48635297280. Its totient is φ = 34223468400.

The previous prime is 41231201197. The next prime is 41231201251. The reversal of 41231201221 is 12210213214.

It is a cyclic number.

It is not a de Polignac number, because 41231201221 - 2⁵ = 41231201189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41231201251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 717355 + ... + 772696.

It is an arithmetic number, because the mean of its divisors is an integer number (3039706080).

Almost surely, 2^41231201221 is an apocalyptic number.

It is an amenable number.

41231201221 is a deficient number, since it is larger than the sum of its proper divisors (7404096059).

41231201221 is a wasteful number, since it uses less digits than its factorization.

41231201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490184.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 41231201221 its reverse (12210213214), we get a palindrome (53441414435).

The spelling of 41231201221 in words is "forty-one billion, two hundred thirty-one million, two hundred one thousand, two hundred twenty-one".