221132234 has 8 divisors (see below), whose sum is σ = 332465700. Its totient is φ = 110310336.

The previous prime is 221132167. The next prime is 221132251. The reversal of 221132234 is 432231122.

It can be written as a sum of positive squares in 2 ways, for example, as 217120225 + 4012009 = 14735^2 + 2003^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126809 + ... + 128540.

Almost surely, 2^221132234 is an apocalyptic number.

221132234 is a deficient number, since it is larger than the sum of its proper divisors (111333466).

221132234 is a wasteful number, since it uses less digits than its factorization.

221132234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255784.

The product of its digits is 576, while the sum is 20.

The square root of 221132234 is about 14870.5155929443. The cubic root of 221132234 is about 604.7149206727.

Adding to 221132234 its reverse (432231122), we get a palindrome (653363356).

The spelling of 221132234 in words is "two hundred twenty-one million, one hundred thirty-two thousand, two hundred thirty-four".