12103404212 has 6 divisors (see below), whose sum is σ = 21180957378. Its totient is φ = 6051702104.

The previous prime is 12103404197. The next prime is 12103404239. The reversal of 12103404212 is 21240430121.

12103404212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9626749456 + 2476654756 = 98116^2 + 49766^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1512925523 + ... + 1512925530.

It is an arithmetic number, because the mean of its divisors is an integer number (3530159563).

Almost surely, 2^12103404212 is an apocalyptic number.

It is an amenable number.

12103404212 is a deficient number, since it is larger than the sum of its proper divisors (9077553166).

12103404212 is a wasteful number, since it uses less digits than its factorization.

12103404212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3025851057 (or 3025851055 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12103404212 its reverse (21240430121), we get a palindrome (33343834333).

The spelling of 12103404212 in words is "twelve billion, one hundred three million, four hundred four thousand, two hundred twelve".