541232221 has 4 divisors (see below), whose sum is σ = 541296000. Its totient is φ = 541168444.

The previous prime is 541232117. The next prime is 541232261. The reversal of 541232221 is 122232145.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 541232221 - 2¹³ = 541224029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 541232192 and 541232201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (541232261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16771 + ... + 36928.

It is an arithmetic number, because the mean of its divisors is an integer number (135324000).

Almost surely, 2^541232221 is an apocalyptic number.

It is an amenable number.

541232221 is a deficient number, since it is larger than the sum of its proper divisors (63779).

541232221 is a wasteful number, since it uses less digits than its factorization.

541232221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63778.

The product of its digits is 960, while the sum is 22.

The square root of 541232221 is about 23264.3981439452. The cubic root of 541232221 is about 814.9442148827.

Adding to 541232221 its reverse (122232145), we get a palindrome (663464366).

The spelling of 541232221 in words is "five hundred forty-one million, two hundred thirty-two thousand, two hundred twenty-one".