2211956 has 12 divisors (see below), whose sum is σ = 4039392. Its totient is φ = 1057848.

The previous prime is 2211953. The next prime is 2211967. The reversal of 2211956 is 6591122.

It is a d-powerful number, because it can be written as 2⁴ + 2⁸ + 1 + 1 + 9⁶ + 5⁴ + 6⁸ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211953) 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, 11930 + ... + 12113.

It is an arithmetic number, because the mean of its divisors is an integer number (336616).

2^2211956 is an apocalyptic number.

It is an amenable number.

2211956 is a deficient number, since it is larger than the sum of its proper divisors (1827436).

2211956 is a wasteful number, since it uses less digits than its factorization.

2211956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24070 (or 24068 counting only the distinct ones).

The product of its digits is 1080, while the sum is 26.

The square root of 2211956 is about 1487.2646032230. The cubic root of 2211956 is about 130.2943232799.

The spelling of 2211956 in words is "two million, two hundred eleven thousand, nine hundred fifty-six".