221341033 has 4 divisors (see below), whose sum is σ = 221370880. Its totient is φ = 221311188.

The previous prime is 221341031. The next prime is 221341039. The reversal of 221341033 is 330143122.

221341033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 221341033 - 2¹ = 221341031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221341033.

It is not an unprimeable number, because it can be changed into a prime (221341031) 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, 5716 + ... + 21802.

It is an arithmetic number, because the mean of its divisors is an integer number (55342720).

Almost surely, 2^221341033 is an apocalyptic number.

It is an amenable number.

221341033 is a deficient number, since it is larger than the sum of its proper divisors (29847).

221341033 is a wasteful number, since it uses less digits than its factorization.

221341033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29846.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 221341033 is about 14877.5345067656. The cubic root of 221341033 is about 604.9051901610.

Adding to 221341033 its reverse (330143122), we get a palindrome (551484155).

The spelling of 221341033 in words is "two hundred twenty-one million, three hundred forty-one thousand, thirty-three".