2001010212 has 108 divisors (see below), whose sum is σ = 5326186320. Its totient is φ = 633358176.

The previous prime is 2001010169. The next prime is 2001010247. The reversal of 2001010212 is 2120101002.

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 = 2001010194 and 2001010203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3408583 + ... + 3409169.

It is an arithmetic number, because the mean of its divisors is an integer number (49316540).

Almost surely, 2^2001010212 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 2001010212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2663093160).

2001010212 is an abundant number, since it is smaller than the sum of its proper divisors (3325176108).

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

2001010212 is a wasteful number, since it uses less digits than its factorization.

2001010212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822 (or 794 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 2001010212 is about 44732.6526376427. The cubic root of 2001010212 is about 1260.1331454159.

Adding to 2001010212 its reverse (2120101002), we get a palindrome (4121111214).

The spelling of 2001010212 in words is "two billion, one million, ten thousand, two hundred twelve".