3121223213105 has 8 divisors (see below), whose sum is σ = 3749932065600. Its totient is φ = 2494002430576.

The previous prime is 3121223213071. The next prime is 3121223213153. The reversal of 3121223213105 is 5013123221213.

3121223213105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3121223213105 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372012875 + ... + 372021264.

It is an arithmetic number, because the mean of its divisors is an integer number (468741508200).

Almost surely, 2^{3121223213105} is an apocalyptic number.

It is an amenable number.

3121223213105 is a deficient number, since it is larger than the sum of its proper divisors (628708852495).

3121223213105 is an equidigital number, since it uses as much as digits as its factorization.

3121223213105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744034983.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 3121223213105 its reverse (5013123221213), we get a palindrome (8134346434318).

The spelling of 3121223213105 in words is "three trillion, one hundred twenty-one billion, two hundred twenty-three million, two hundred thirteen thousand, one hundred five".