2001201012 has 24 divisors (see below), whose sum is σ = 5188299200. Its totient is φ = 667066968.

The previous prime is 2001200989. The next prime is 2001201017. The reversal of 2001201012 is 2101021002.

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 = 2001200985 and 2001201003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001201017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9264712 + ... + 9264927.

Almost surely, 2^2001201012 is an apocalyptic number.

It is an amenable number.

2001201012 is an abundant number, since it is smaller than the sum of its proper divisors (3187098188).

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

2001201012 is a wasteful number, since it uses less digits than its factorization.

2001201012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18529652 (or 18529644 counting only the distinct ones).

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

The square root of 2001201012 is about 44734.7852571128. The cubic root of 2001201012 is about 1260.1731961465.

Adding to 2001201012 its reverse (2101021002), we get a palindrome (4102222014).

The spelling of 2001201012 in words is "two billion, one million, two hundred one thousand, twelve".