1112001012 has 72 divisors (see below), whose sum is σ = 2887352832. Its totient is φ = 360676800.

The previous prime is 1112001001. The next prime is 1112001029. The reversal of 1112001012 is 2101002111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1112000985 and 1112001003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 304437 + ... + 308067.

Almost surely, 2^1112001012 is an apocalyptic number.

1112001012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1112001012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1443676416).

1112001012 is an abundant number, since it is smaller than the sum of its proper divisors (1775351820).

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

1112001012 is a wasteful number, since it uses less digits than its factorization.

1112001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3869 (or 3864 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1112001012 is about 33346.6791749943. The cubic root of 1112001012 is about 1036.0206077603.

Adding to 1112001012 its reverse (2101002111), we get a palindrome (3213003123).

The spelling of 1112001012 in words is "one billion, one hundred twelve million, one thousand, twelve".