221232614 has 4 divisors (see below), whose sum is σ = 331848924. Its totient is φ = 110616306.

The previous prime is 221232601. The next prime is 221232629. The reversal of 221232614 is 416232122.

It is a happy number.

221232614 is digitally balanced in base 3, 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, and also an emirpimes, since its reverse is a distinct semiprime: 416232122 = 2 ⋅208116061.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 221232614.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55308152 + ... + 55308155.

It is an arithmetic number, because the mean of its divisors is an integer number (82962231).

Almost surely, 2^221232614 is an apocalyptic number.

221232614 is a deficient number, since it is larger than the sum of its proper divisors (110616310).

221232614 is a wasteful number, since it uses less digits than its factorization.

221232614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110616309.

The product of its digits is 1152, while the sum is 23.

The square root of 221232614 is about 14873.8903451652. The cubic root of 221232614 is about 604.8064075629.

Adding to 221232614 its reverse (416232122), we get a palindrome (637464736).

The spelling of 221232614 in words is "two hundred twenty-one million, two hundred thirty-two thousand, six hundred fourteen".