2001012 has 48 divisors (see below), whose sum is σ = 5117952. Its totient is φ = 604800.

The previous prime is 2000989. The next prime is 2001037. The reversal of 2001012 is 2101002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15693 + ... + 15819.

It is an arithmetic number, because the mean of its divisors is an integer number (106624).

2^2001012 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 2001012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2558976).

2001012 is an abundant number, since it is smaller than the sum of its proper divisors (3116940).

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

2001012 is a wasteful number, since it uses less digits than its factorization.

2001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 2001012 is about 1414.5713131546. The cubic root of 2001012 is about 126.0133520746.

Adding to 2001012 its reverse (2101002), we get a palindrome (4102014).

The spelling of 2001012 in words is "two million, one thousand, twelve".