3111213221121 has 8 divisors (see below), whose sum is σ = 4155279717600. Its totient is φ = 2070644436032.

The previous prime is 3111213221087. The next prime is 3111213221153. The reversal of 3111213221121 is 1211223121113.

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-3111213221121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3111213231121) 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, 874425771 + ... + 874429328.

It is an arithmetic number, because the mean of its divisors is an integer number (519409964700).

Almost surely, 2^{3111213221121} is an apocalyptic number.

It is an amenable number.

3111213221121 is a deficient number, since it is larger than the sum of its proper divisors (1044066496479).

3111213221121 is a wasteful number, since it uses less digits than its factorization.

3111213221121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748855695.

The product of its digits is 144, while the sum is 21.

Adding to 3111213221121 its reverse (1211223121113), we get a palindrome (4322436342234).

The spelling of 3111213221121 in words is "three trillion, one hundred eleven billion, two hundred thirteen million, two hundred twenty-one thousand, one hundred twenty-one".