221103020212 has 12 divisors (see below), whose sum is σ = 389492738656. Its totient is φ = 109819380600.

The previous prime is 221103020167. The next prime is 221103020249. The reversal of 221103020212 is 212020301122.

It is a happy number.

221103020212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 183031698 + ... + 183032905.

Almost surely, 2^221103020212 is an apocalyptic number.

It is an amenable number.

221103020212 is a deficient number, since it is larger than the sum of its proper divisors (168389718444).

221103020212 is a wasteful number, since it uses less digits than its factorization.

221103020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366064758 (or 366064756 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 221103020212 its reverse (212020301122), we get a palindrome (433123321334).

The spelling of 221103020212 in words is "two hundred twenty-one billion, one hundred three million, twenty thousand, two hundred twelve".