221122234 has 4 divisors (see below), whose sum is σ = 331683354. Its totient is φ = 110561116.

The previous prime is 221122193. The next prime is 221122259. The reversal of 221122234 is 432221122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 167055625 + 54066609 = 12925^2 + 7353^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55280557 + ... + 55280560.

Almost surely, 2^221122234 is an apocalyptic number.

221122234 is a deficient number, since it is larger than the sum of its proper divisors (110561120).

221122234 is a wasteful number, since it uses less digits than its factorization.

221122234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110561119.

The product of its digits is 384, while the sum is 19.

The square root of 221122234 is about 14870.1793533232. The cubic root of 221122234 is about 604.7058051008.

Adding to 221122234 its reverse (432221122), we get a palindrome (653343356).

The spelling of 221122234 in words is "two hundred twenty-one million, one hundred twenty-two thousand, two hundred thirty-four".