221313134032 has 20 divisors (see below), whose sum is σ = 431924086116. Its totient is φ = 109848853760.

The previous prime is 221313134017. The next prime is 221313134093. The reversal of 221313134032 is 230431313122.

221313134032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 72298605456 + 149014528576 = 268884^2 + 386024^2 .

It is a junction number, because it is equal to n+sod(n) for n = 221313133988 and 221313134006.

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, 50479819 + ... + 50484202.

Almost surely, 2^221313134032 is an apocalyptic number.

It is an amenable number.

221313134032 is a deficient number, since it is larger than the sum of its proper divisors (210610952084).

221313134032 is a wasteful number, since it uses less digits than its factorization.

221313134032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100964166 (or 100964160 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 221313134032 its reverse (230431313122), we get a palindrome (451744447154).

The spelling of 221313134032 in words is "two hundred twenty-one billion, three hundred thirteen million, one hundred thirty-four thousand, thirty-two".