2051211 has 4 divisors (see below), whose sum is σ = 2734952. Its totient is φ = 1367472.

The previous prime is 2051191. The next prime is 2051219. The reversal of 2051211 is 1121502.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2051211 - 2¹⁴ = 2034827 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2051219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341866 + ... + 341871.

It is an arithmetic number, because the mean of its divisors is an integer number (683738).

2^2051211 is an apocalyptic number.

2051211 is a deficient number, since it is larger than the sum of its proper divisors (683741).

2051211 is an equidigital number, since it uses as much as digits as its factorization.

2051211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683740.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 2051211 is about 1432.2049434351. The cubic root of 2051211 is about 127.0584185742.

Adding to 2051211 its reverse (1121502), we get a palindrome (3172713).

The spelling of 2051211 in words is "two million, fifty-one thousand, two hundred eleven".