220221133 has 4 divisors (see below), whose sum is σ = 240241248. Its totient is φ = 200201020.

The previous prime is 220221101. The next prime is 220221143. The reversal of 220221133 is 331122022.

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.

It is a cyclic number.

It is not a de Polignac number, because 220221133 - 2⁵ = 220221101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220221143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10010041 + ... + 10010062.

It is an arithmetic number, because the mean of its divisors is an integer number (60060312).

Almost surely, 2^220221133 is an apocalyptic number.

It is an amenable number.

220221133 is a deficient number, since it is larger than the sum of its proper divisors (20020115).

220221133 is a wasteful number, since it uses less digits than its factorization.

220221133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20020114.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 220221133 is about 14839.8494938460. The cubic root of 220221133 is about 603.8832692930.

Adding to 220221133 its reverse (331122022), we get a palindrome (551343155).

The spelling of 220221133 in words is "two hundred twenty million, two hundred twenty-one thousand, one hundred thirty-three".