2111021312 has 36 divisors (see below), whose sum is σ = 4252511340. Its totient is φ = 1045813248.

The previous prime is 2111021299. The next prime is 2111021321. The reversal of 2111021312 is 2131201112.

It can be written as a sum of positive squares in 2 ways, for example, as 1326125056 + 784896256 = 36416^2 + 28016^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9923 + ... + 65730.

It is an arithmetic number, because the mean of its divisors is an integer number (118125315).

Almost surely, 2^2111021312 is an apocalyptic number.

It is an amenable number.

2111021312 is an abundant number, since it is smaller than the sum of its proper divisors (2141490028).

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

2111021312 is an equidigital number, since it uses as much as digits as its factorization.

2111021312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75778 (or 75764 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 2111021312 is about 45945.8519564062. The cubic root of 2111021312 is about 1282.8155211161.

Adding to 2111021312 its reverse (2131201112), we get a palindrome (4242222424).

The spelling of 2111021312 in words is "two billion, one hundred eleven million, twenty-one thousand, three hundred twelve".