212220221103 has 32 divisors (see below), whose sum is σ = 343189217280. Its totient is φ = 128540675520.

The previous prime is 212220221077. The next prime is 212220221113. The reversal of 212220221103 is 301122022212.

212220221103 is a `hidden beast` number, since 212 + 220 + 221 + 10 + 3 = 666.

It is not a de Polignac number, because 212220221103 - 2¹² = 212220217007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212220221113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 279075 + ... + 708747.

It is an arithmetic number, because the mean of its divisors is an integer number (10724663040).

Almost surely, 2^212220221103 is an apocalyptic number.

212220221103 is a deficient number, since it is larger than the sum of its proper divisors (130968996177).

212220221103 is a wasteful number, since it uses less digits than its factorization.

212220221103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431356 (or 431350 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 212220221103 its reverse (301122022212), we get a palindrome (513342243315).

The spelling of 212220221103 in words is "two hundred twelve billion, two hundred twenty million, two hundred twenty-one thousand, one hundred three".