1020012112 has 80 divisors (see below), whose sum is σ = 2396275200. Its totient is φ = 410866560.

The previous prime is 1020012107. The next prime is 1020012113. The reversal of 1020012112 is 2112100201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020012113) 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 15 ways as a sum of consecutive naturals, for example, 276939 + ... + 280597.

It is an arithmetic number, because the mean of its divisors is an integer number (29953440).

Almost surely, 2^1020012112 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 1020012112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1198137600).

1020012112 is an abundant number, since it is smaller than the sum of its proper divisors (1376263088).

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

1020012112 is a wasteful number, since it uses less digits than its factorization.

1020012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3824 (or 3818 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1020012112 is about 31937.6284654951. The cubic root of 1020012112 is about 1006.6266939281.

Adding to 1020012112 its reverse (2112100201), we get a palindrome (3132112313).

The spelling of 1020012112 in words is "one billion, twenty million, twelve thousand, one hundred twelve".