11221238 has 8 divisors (see below), whose sum is σ = 19236432. Its totient is φ = 4809096.

The previous prime is 11221219. The next prime is 11221247. The reversal of 11221238 is 83212211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400745 + ... + 400772.

It is an arithmetic number, because the mean of its divisors is an integer number (2404554).

Almost surely, 2^11221238 is an apocalyptic number.

11221238 is a deficient number, since it is larger than the sum of its proper divisors (8015194).

11221238 is an equidigital number, since it uses as much as digits as its factorization.

11221238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801526.

The product of its digits is 192, while the sum is 20.

The square root of 11221238 is about 3349.8116364954. The cubic root of 11221238 is about 223.8791200476.

Adding to 11221238 its reverse (83212211), we get a palindrome (94433449).

The spelling of 11221238 in words is "eleven million, two hundred twenty-one thousand, two hundred thirty-eight".