11388212 has 24 divisors (see below), whose sum is σ = 22102752. Its totient is φ = 5090400.

The previous prime is 11388199. The next prime is 11388227. The reversal of 11388212 is 21288311.

11388212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 563 + ... + 4805.

It is an arithmetic number, because the mean of its divisors is an integer number (920948).

Almost surely, 2^11388212 is an apocalyptic number.

It is an amenable number.

11388212 is a deficient number, since it is larger than the sum of its proper divisors (10714540).

11388212 is a wasteful number, since it uses less digits than its factorization.

11388212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4319 (or 4317 counting only the distinct ones).

The product of its digits is 768, while the sum is 26.

The square root of 11388212 is about 3374.6424995842. The cubic root of 11388212 is about 224.9841108121.

Subtracting 11388212 from its reverse (21288311), we obtain a palindrome (9900099).

The spelling of 11388212 in words is "eleven million, three hundred eighty-eight thousand, two hundred twelve".