221110120006 has 4 divisors (see below), whose sum is σ = 331665180012. Its totient is φ = 110555060002.

The previous prime is 221110120001. The next prime is 221110120039. The reversal of 221110120006 is 600021011122.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221110120001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55277530000 + ... + 55277530003.

It is an arithmetic number, because the mean of its divisors is an integer number (82916295003).

Almost surely, 2^221110120006 is an apocalyptic number.

221110120006 is a deficient number, since it is larger than the sum of its proper divisors (110555060006).

221110120006 is a wasteful number, since it uses less digits than its factorization.

221110120006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110555060005.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 221110120006 its reverse (600021011122), we get a palindrome (821131131128).

The spelling of 221110120006 in words is "two hundred twenty-one billion, one hundred ten million, one hundred twenty thousand, six".