221041331 has 8 divisors (see below), whose sum is σ = 253603680. Its totient is φ = 188725248.

The previous prime is 221041321. The next prime is 221041357. The reversal of 221041331 is 133140122.

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

It is a cyclic number.

It is not a de Polignac number, because 221041331 - 2⁶ = 221041267 is a prime.

It is a super-2 number, since 2×221041331² = 97718540020503122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221041321) 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, 59636 + ... + 63233.

It is an arithmetic number, because the mean of its divisors is an integer number (31700460).

Almost surely, 2^221041331 is an apocalyptic number.

221041331 is a deficient number, since it is larger than the sum of its proper divisors (32562349).

221041331 is a wasteful number, since it uses less digits than its factorization.

221041331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123133.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 221041331 is about 14867.4587942930. The cubic root of 221041331 is about 604.6320472813.

Adding to 221041331 its reverse (133140122), we get a palindrome (354181453).

The spelling of 221041331 in words is "two hundred twenty-one million, forty-one thousand, three hundred thirty-one".