221032133 has 8 divisors (see below), whose sum is σ = 252730560. Its totient is φ = 189364320.

The previous prime is 221032127. The next prime is 221032151. The reversal of 221032133 is 331230122.

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 221032133 - 2⁶ = 221032069 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 (221032103) 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, 10793 + ... + 23633.

It is an arithmetic number, because the mean of its divisors is an integer number (31591320).

Almost surely, 2^221032133 is an apocalyptic number.

It is an amenable number.

221032133 is a deficient number, since it is larger than the sum of its proper divisors (31698427).

221032133 is a wasteful number, since it uses less digits than its factorization.

221032133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15307.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 221032133 is about 14867.1494577811. The cubic root of 221032133 is about 604.6236604897.

Adding to 221032133 its reverse (331230122), we get a palindrome (552262255).

It can be divided in two parts, 2210 and 32133, that added together give a palindrome (34343).

The spelling of 221032133 in words is "two hundred twenty-one million, thirty-two thousand, one hundred thirty-three".