221201120221112 has 16 divisors (see below), whose sum is σ = 414773097627840. Its totient is φ = 110594960853696.

The previous prime is 221201120221093. The next prime is 221201120221117. The reversal of 221201120221112 is 211122021102122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221201120221117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 699739208 + ... + 700055255.

It is an arithmetic number, because the mean of its divisors is an integer number (25923318601740).

Almost surely, 2^{221201120221112} is an apocalyptic number.

It is an amenable number.

221201120221112 is a deficient number, since it is larger than the sum of its proper divisors (193571977406728).

221201120221112 is a wasteful number, since it uses less digits than its factorization.

221201120221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399814222 (or 1399814218 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 221201120221112 its reverse (211122021102122), we get a palindrome (432323141323234).

The spelling of 221201120221112 in words is "two hundred twenty-one trillion, two hundred one billion, one hundred twenty million, two hundred twenty-one thousand, one hundred twelve".