41021340221 has 8 divisors (see below), whose sum is σ = 43491750840. Its totient is φ = 38557306368.

The previous prime is 41021340211. The next prime is 41021340263. The reversal of 41021340221 is 12204312014.

It can be written as a sum of positive squares in 4 ways, for example, as 21429739321 + 19591600900 = 146389^2 + 139970^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41021340221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 41021340193 and 41021340202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41021340211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1580936 + ... + 1606673.

It is an arithmetic number, because the mean of its divisors is an integer number (5436468855).

Almost surely, 2^41021340221 is an apocalyptic number.

It is an amenable number.

41021340221 is a deficient number, since it is larger than the sum of its proper divisors (2470410619).

41021340221 is a wasteful number, since it uses less digits than its factorization.

41021340221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3188383.

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

Adding to 41021340221 its reverse (12204312014), we get a palindrome (53225652235).

The spelling of 41021340221 in words is "forty-one billion, twenty-one million, three hundred forty thousand, two hundred twenty-one".