2212112311 has 4 divisors (see below), whose sum is σ = 2249605800. Its totient is φ = 2174618824.

The previous prime is 2212112299. The next prime is 2212112323. The reversal of 2212112311 is 1132112122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1132112122 = 2 ⋅566056061.

It is an interprime number because it is at equal distance from previous prime (2212112299) and next prime (2212112323).

It is a cyclic number.

It is not a de Polignac number, because 2212112311 - 2⁹ = 2212111799 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 (2212112341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18746656 + ... + 18746773.

It is an arithmetic number, because the mean of its divisors is an integer number (562401450).

Almost surely, 2^2212112311 is an apocalyptic number.

2212112311 is a deficient number, since it is larger than the sum of its proper divisors (37493489).

2212112311 is an equidigital number, since it uses as much as digits as its factorization.

2212112311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37493488.

The product of its digits is 48, while the sum is 16.

The square root of 2212112311 is about 47033.0980374459. The cubic root of 2212112311 is about 1302.9739235179.

Adding to 2212112311 its reverse (1132112122), we get a palindrome (3344224433).

The spelling of 2212112311 in words is "two billion, two hundred twelve million, one hundred twelve thousand, three hundred eleven".