221244120224 has 48 divisors (see below), whose sum is σ = 451506908160. Its totient is φ = 106605569280.

The previous prime is 221244120217. The next prime is 221244120241. The reversal of 221244120224 is 422021442122.

It is a junction number, because it is equal to n+sod(n) for n = 221244120193 and 221244120202.

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 7 ways as a sum of consecutive naturals, for example, 229499 + ... + 703674.

It is an arithmetic number, because the mean of its divisors is an integer number (9406393920).

Almost surely, 2^221244120224 is an apocalyptic number.

It is an amenable number.

221244120224 is an abundant number, since it is smaller than the sum of its proper divisors (230262787936).

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

221244120224 is a wasteful number, since it uses less digits than its factorization.

221244120224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933453 (or 933445 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 221244120224 its reverse (422021442122), we get a palindrome (643265562346).

The spelling of 221244120224 in words is "two hundred twenty-one billion, two hundred forty-four million, one hundred twenty thousand, two hundred twenty-four".