221224144304132 has 12 divisors (see below), whose sum is σ = 400491985378380. Its totient is φ = 106797862767456.

The previous prime is 221224144304129. The next prime is 221224144304147. The reversal of 221224144304132 is 231403441422122.

It can be written as a sum of positive squares in 2 ways, for example, as 158392142135236 + 62832002168896 = 12585394^2 + 7926664^2 .

It is a junction number, because it is equal to n+sod(n) for n = 221224144304092 and 221224144304101.

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 in 3 ways as a sum of consecutive naturals, for example, 953552346023 + ... + 953552346254.

It is an arithmetic number, because the mean of its divisors is an integer number (33374332114865).

Almost surely, 2^{221224144304132} is an apocalyptic number.

It is an amenable number.

221224144304132 is a deficient number, since it is larger than the sum of its proper divisors (179267841074248).

221224144304132 is a wasteful number, since it uses less digits than its factorization.

221224144304132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1907104692310 (or 1907104692308 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 35.

Adding to 221224144304132 its reverse (231403441422122), we get a palindrome (452627585726254).

The spelling of 221224144304132 in words is "two hundred twenty-one trillion, two hundred twenty-four billion, one hundred forty-four million, three hundred four thousand, one hundred thirty-two".