11221396 has 12 divisors (see below), whose sum is σ = 19781748. Its totient is φ = 5569472.

The previous prime is 11221393. The next prime is 11221417. The reversal of 11221396 is 69312211.

11221396 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7761796 + 3459600 = 2786^2 + 1860^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11221396.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221393) 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, 9691 + ... + 10786.

It is an arithmetic number, because the mean of its divisors is an integer number (1648479).

Almost surely, 2^11221396 is an apocalyptic number.

It is an amenable number.

11221396 is a deficient number, since it is larger than the sum of its proper divisors (8560352).

11221396 is a wasteful number, since it uses less digits than its factorization.

11221396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20618 (or 20616 counting only the distinct ones).

The product of its digits is 648, while the sum is 25.

The square root of 11221396 is about 3349.8352198280. The cubic root of 11221396 is about 223.8801708151.

The spelling of 11221396 in words is "eleven million, two hundred twenty-one thousand, three hundred ninety-six".