2011001211 has 12 divisors (see below), whose sum is σ = 3057662920. Its totient is φ = 1270105920.

The previous prime is 2011001197. The next prime is 2011001227. The reversal of 2011001211 is 1121001102.

It is a happy number.

It is not a de Polignac number, because 2011001211 - 2¹¹ = 2010999163 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011001193 and 2011001202.

It is not an unprimeable number, because it can be changed into a prime (2011001261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5879950 + ... + 5880291.

Almost surely, 2^2011001211 is an apocalyptic number.

2011001211 is a deficient number, since it is larger than the sum of its proper divisors (1046661709).

2011001211 is a wasteful number, since it uses less digits than its factorization.

2011001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11760266 (or 11760263 counting only the distinct ones).

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

The square root of 2011001211 is about 44844.1881518665. The cubic root of 2011001211 is about 1262.2269366764.

Adding to 2011001211 its reverse (1121001102), we get a palindrome (3132002313).

The spelling of 2011001211 in words is "two billion, eleven million, one thousand, two hundred eleven".