2001211000 has 32 divisors (see below), whose sum is σ = 4682836080. Its totient is φ = 800484000.

The previous prime is 2001210989. The next prime is 2001211027. The reversal of 2001211000 is 1121002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 999606 + ... + 1001605.

Almost surely, 2^2001211000 is an apocalyptic number.

2001211000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001211000 is an abundant number, since it is smaller than the sum of its proper divisors (2681625080).

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

2001211000 is a wasteful number, since it uses less digits than its factorization.

2001211000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001232 (or 2001218 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 2001211000 is about 44734.8968926944. The cubic root of 2001211000 is about 1260.1752926523.

Adding to 2001211000 its reverse (1121002), we get a palindrome (2002332002).

The spelling of 2001211000 in words is "two billion, one million, two hundred eleven thousand".