221240330012 has 12 divisors (see below), whose sum is σ = 416952929736. Its totient is φ = 102110921520.

The previous prime is 221240329993. The next prime is 221240330021. The reversal of 221240330012 is 210033042122.

221240330012 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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 in 3 ways as a sum of consecutive naturals, for example, 2127310814 + ... + 2127310917.

It is an arithmetic number, because the mean of its divisors is an integer number (34746077478).

Almost surely, 2^221240330012 is an apocalyptic number.

It is an amenable number.

221240330012 is a deficient number, since it is larger than the sum of its proper divisors (195712599724).

221240330012 is a wasteful number, since it uses less digits than its factorization.

221240330012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4254621748 (or 4254621746 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 221240330012 its reverse (210033042122), we get a palindrome (431273372134).

The spelling of 221240330012 in words is "two hundred twenty-one billion, two hundred forty million, three hundred thirty thousand, twelve".