41131221 has 8 divisors (see below), whose sum is σ = 54967200. Its totient is φ = 27358032.

The previous prime is 41131213. The next prime is 41131243. The reversal of 41131221 is 12213114.

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

It is not a de Polignac number, because 41131221 - 2³ = 41131213 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 41131221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41131421) 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, 14146 + ... + 16803.

It is an arithmetic number, because the mean of its divisors is an integer number (6870900).

Almost surely, 2^41131221 is an apocalyptic number.

It is an amenable number.

41131221 is a deficient number, since it is larger than the sum of its proper divisors (13835979).

41131221 is a wasteful number, since it uses less digits than its factorization.

41131221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31395.

The product of its digits is 48, while the sum is 15.

The square root of 41131221 is about 6413.3626905080. The cubic root of 41131221 is about 345.1892009895.

Adding to 41131221 its reverse (12213114), we get a palindrome (53344335).

The spelling of 41131221 in words is "forty-one million, one hundred thirty-one thousand, two hundred twenty-one".