12321212102 has 8 divisors (see below), whose sum is σ = 19285375536. Its totient is φ = 5892753592.

The previous prime is 12321212051. The next prime is 12321212119. The reversal of 12321212102 is 20121212321.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 133926173 + ... + 133926264.

It is an arithmetic number, because the mean of its divisors is an integer number (2410671942).

Almost surely, 2^12321212102 is an apocalyptic number.

12321212102 is a deficient number, since it is larger than the sum of its proper divisors (6964163434).

12321212102 is a wasteful number, since it uses less digits than its factorization.

12321212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267852462.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12321212102 its reverse (20121212321), we get a palindrome (32442424423).

The spelling of 12321212102 in words is "twelve billion, three hundred twenty-one million, two hundred twelve thousand, one hundred two".