221011333112 has 8 divisors (see below), whose sum is σ = 414396249600. Its totient is φ = 110505666552.

The previous prime is 221011333111. The next prime is 221011333117. The reversal of 221011333112 is 211333110122.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221011333111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13813208312 + ... + 13813208327.

It is an arithmetic number, because the mean of its divisors is an integer number (51799531200).

Almost surely, 2^221011333112 is an apocalyptic number.

It is an amenable number.

221011333112 is a deficient number, since it is larger than the sum of its proper divisors (193384916488).

221011333112 is a wasteful number, since it uses less digits than its factorization.

221011333112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27626416645 (or 27626416641 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 221011333112 its reverse (211333110122), we get a palindrome (432344443234).

The spelling of 221011333112 in words is "two hundred twenty-one billion, eleven million, three hundred thirty-three thousand, one hundred twelve".