221234101044044 has 72 divisors (see below), whose sum is σ = 434642206751424. Its totient is φ = 98414078963200.

The previous prime is 221234101043947. The next prime is 221234101044071. The reversal of 221234101044044 is 440440101432122.

It is a self number, because there is not a number n which added to its sum of digits gives 221234101044044.

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 23 ways as a sum of consecutive naturals, for example, 313137332 + ... + 313843044.

It is an arithmetic number, because the mean of its divisors is an integer number (6036697315992).

Almost surely, 2^{221234101044044} is an apocalyptic number.

It is an amenable number.

221234101044044 is a deficient number, since it is larger than the sum of its proper divisors (213408105707380).

221234101044044 is a wasteful number, since it uses less digits than its factorization.

221234101044044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719567 (or 719554 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 221234101044044 its reverse (440440101432122), we get a palindrome (661674202476166).

The spelling of 221234101044044 in words is "two hundred twenty-one trillion, two hundred thirty-four billion, one hundred one million, forty-four thousand, forty-four".