3111222121213 has 8 divisors (see below), whose sum is σ = 3131090082720. Its totient is φ = 3091354808880.

The previous prime is 3111222121199. The next prime is 3111222121223. The reversal of 3111222121213 is 3121212221113.

It is a happy number.

3111222121213 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-3111222121213 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 (3111222121223) 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, 12691518 + ... + 12934336.

It is an arithmetic number, because the mean of its divisors is an integer number (391386260340).

Almost surely, 2^{3111222121213} is an apocalyptic number.

It is an amenable number.

3111222121213 is a deficient number, since it is larger than the sum of its proper divisors (19867961507).

3111222121213 is a wasteful number, since it uses less digits than its factorization.

3111222121213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324587.

The product of its digits is 288, while the sum is 22.

Adding to 3111222121213 its reverse (3121212221113), we get a palindrome (6232434342326).

The spelling of 3111222121213 in words is "three trillion, one hundred eleven billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred thirteen".