2111211312 has 40 divisors (see below), whose sum is σ = 6233101056. Its totient is φ = 603203136.

The previous prime is 2111211307. The next prime is 2111211313. The reversal of 2111211312 is 2131121112.

It is a super-2 number, since 2×2111211312² = 8914426407833522688, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 2111211291 and 2111211300.

It is not an unprimeable number, because it can be changed into a prime (2111211313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3141348 + ... + 3142019.

Almost surely, 2^2111211312 is an apocalyptic number.

It is an amenable number.

2111211312 is an abundant number, since it is smaller than the sum of its proper divisors (4121889744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2111211312 is a wasteful number, since it uses less digits than its factorization.

2111211312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6283385 (or 6283379 counting only the distinct ones).

The product of its digits is 24, while the sum is 15.

The square root of 2111211312 is about 45947.9195611727. The cubic root of 2111211312 is about 1282.8540060642.

Adding to 2111211312 its reverse (2131121112), we get a palindrome (4242332424).

The spelling of 2111211312 in words is "two billion, one hundred eleven million, two hundred eleven thousand, three hundred twelve".