221334421011 has 24 divisors (see below), whose sum is σ = 327591659472. Its totient is φ = 132813912000.

The previous prime is 221334421001. The next prime is 221334421013. The reversal of 221334421011 is 110124433122.

221334421011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 221334421011 - 2³³ = 212744486419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221334421013) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2981836 + ... + 3055161.

It is an arithmetic number, because the mean of its divisors is an integer number (13649652478).

Almost surely, 2^221334421011 is an apocalyptic number.

221334421011 is a deficient number, since it is larger than the sum of its proper divisors (106257238461).

221334421011 is a wasteful number, since it uses less digits than its factorization.

221334421011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6037123 (or 6037112 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 221334421011 its reverse (110124433122), we get a palindrome (331458854133).

The spelling of 221334421011 in words is "two hundred twenty-one billion, three hundred thirty-four million, four hundred twenty-one thousand, eleven".