11228211 has 12 divisors (see below), whose sum is σ = 17172792. Its totient is φ = 7045056.

The previous prime is 11228207. The next prime is 11228227. The reversal of 11228211 is 11282211.

11228211 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11228211 - 2² = 11228207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11228251) 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, 36541 + ... + 36846.

It is an arithmetic number, because the mean of its divisors is an integer number (1431066).

Almost surely, 2^11228211 is an apocalyptic number.

11228211 is a deficient number, since it is larger than the sum of its proper divisors (5944581).

11228211 is a wasteful number, since it uses less digits than its factorization.

11228211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73410 (or 73407 counting only the distinct ones).

The product of its digits is 64, while the sum is 18.

The square root of 11228211 is about 3350.8522796447. The cubic root of 11228211 is about 223.9254840897.

The spelling of 11228211 in words is "eleven million, two hundred twenty-eight thousand, two hundred eleven".