221294 has 4 divisors (see below), whose sum is σ = 331944. Its totient is φ = 110646.

The previous prime is 221281. The next prime is 221303. The reversal of 221294 is 492122.

221294 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.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 221294.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55322 + ... + 55325.

It is an arithmetic number, because the mean of its divisors is an integer number (82986).

2²²¹²⁹⁴ is an apocalyptic number.

221294 is a deficient number, since it is larger than the sum of its proper divisors (110650).

221294 is a wasteful number, since it uses less digits than its factorization.

221294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110649.

The product of its digits is 288, while the sum is 20.

The square root of 221294 is about 470.4189622028. The cubic root of 221294 is about 60.4862341469.

It can be divided in two parts, 221 and 294, that added together give a palindrome (515).

The spelling of 221294 in words is "two hundred twenty-one thousand, two hundred ninety-four".