221232294 has 24 divisors (see below), whose sum is σ = 480445680. Its totient is φ = 73573488.

The previous prime is 221232283. The next prime is 221232343. The reversal of 221232294 is 492232122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6097 + ... + 21900.

It is an arithmetic number, because the mean of its divisors is an integer number (20018570).

Almost surely, 2^221232294 is an apocalyptic number.

221232294 is an abundant number, since it is smaller than the sum of its proper divisors (259213386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221232294 is a wasteful number, since it uses less digits than its factorization.

221232294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28444 (or 28441 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 221232294 is about 14873.8795880564. The cubic root of 221232294 is about 604.8061159571.

The spelling of 221232294 in words is "two hundred twenty-one million, two hundred thirty-two thousand, two hundred ninety-four".