1012162112 has 56 divisors (see below), whose sum is σ = 2187473400. Its totient is φ = 461869056.

The previous prime is 1012162111. The next prime is 1012162157. The reversal of 1012162112 is 2112612101.

It can be written as a sum of positive squares in 4 ways, for example, as 27206656 + 984955456 = 5216^2 + 31384^2 .

It is not an unprimeable number, because it can be changed into a prime (1012162111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67214 + ... + 80882.

It is an arithmetic number, because the mean of its divisors is an integer number (39062025).

Almost surely, 2^1012162112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1012162112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1093736700).

1012162112 is an abundant number, since it is smaller than the sum of its proper divisors (1175311288).

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

1012162112 is a wasteful number, since it uses less digits than its factorization.

1012162112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13783 (or 13773 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 1012162112 is about 31814.4953126715. The cubic root of 1012162112 is about 1004.0377122705.

Adding to 1012162112 its reverse (2112612101), we get a palindrome (3124774213).

The spelling of 1012162112 in words is "one billion, twelve million, one hundred sixty-two thousand, one hundred twelve".