12112112221213 has 8 divisors (see below), whose sum is σ = 12174990696000. Its totient is φ = 12049234998528.

The previous prime is 12112112221133. The next prime is 12112112221289. The reversal of 12112112221213 is 31212221121121.

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-12112112221213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112112221513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23951778 + ... + 24452236.

It is an arithmetic number, because the mean of its divisors is an integer number (1521873837000).

Almost surely, 2^{12112112221213} is an apocalyptic number.

It is an amenable number.

12112112221213 is a deficient number, since it is larger than the sum of its proper divisors (62878474787).

12112112221213 is a wasteful number, since it uses less digits than its factorization.

12112112221213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626051.

The product of its digits is 192, while the sum is 22.

Adding to 12112112221213 its reverse (31212221121121), we get a palindrome (43324333342334).

The spelling of 12112112221213 in words is "twelve trillion, one hundred twelve billion, one hundred twelve million, two hundred twenty-one thousand, two hundred thirteen".