41221165201 has 4 divisors (see below), whose sum is σ = 41231502900. Its totient is φ = 41210827504.

The previous prime is 41221165187. The next prime is 41221165211. The reversal of 41221165201 is 10256112214.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30658259025 + 10562906176 = 175095^2 + 102776^2 .

It is a cyclic number.

It is not a de Polignac number, because 41221165201 - 2⁹ = 41221164689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41221165211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5162866 + ... + 5170843.

It is an arithmetic number, because the mean of its divisors is an integer number (10307875725).

Almost surely, 2^41221165201 is an apocalyptic number.

It is an amenable number.

41221165201 is a deficient number, since it is larger than the sum of its proper divisors (10337699).

41221165201 is a wasteful number, since it uses less digits than its factorization.

41221165201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10337698.

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 41221165201 its reverse (10256112214), we get a palindrome (51477277415).

The spelling of 41221165201 in words is "forty-one billion, two hundred twenty-one million, one hundred sixty-five thousand, two hundred one".