12102221223 has 12 divisors (see below), whose sum is σ = 18044889408. Its totient is φ = 7807884480.

The previous prime is 12102221221. The next prime is 12102221227. The reversal of 12102221223 is 32212220121.

It is not a de Polignac number, because 12102221223 - 2¹ = 12102221221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12102221196 and 12102221205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102221221) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 21688290 + ... + 21688847.

It is an arithmetic number, because the mean of its divisors is an integer number (1503740784).

Almost surely, 2^12102221223 is an apocalyptic number.

12102221223 is a deficient number, since it is larger than the sum of its proper divisors (5942668185).

12102221223 is a wasteful number, since it uses less digits than its factorization.

12102221223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43377174 (or 43377171 counting only the distinct ones).

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

Adding to 12102221223 its reverse (32212220121), we get a palindrome (44314441344).

The spelling of 12102221223 in words is "twelve billion, one hundred two million, two hundred twenty-one thousand, two hundred twenty-three".