2211256 has 16 divisors (see below), whose sum is σ = 4235040. Its totient is φ = 1081920.

The previous prime is 2211233. The next prime is 2211257. The reversal of 2211256 is 6521122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211257) 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, 2565 + ... + 3316.

It is an arithmetic number, because the mean of its divisors is an integer number (264690).

2^2211256 is an apocalyptic number.

It is an amenable number.

2211256 is a deficient number, since it is larger than the sum of its proper divisors (2023784).

2211256 is a wasteful number, since it uses less digits than its factorization.

2211256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5934 (or 5930 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The square root of 2211256 is about 1487.0292532429. The cubic root of 2211256 is about 130.2805774294.

Adding to 2211256 its reverse (6521122), we get a palindrome (8732378).

The spelling of 2211256 in words is "two million, two hundred eleven thousand, two hundred fifty-six".