11221006 has 4 divisors (see below), whose sum is σ = 16831512. Its totient is φ = 5610502.

The previous prime is 11220997. The next prime is 11221009. The reversal of 11221006 is 60012211.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2805250 + ... + 2805253.

It is an arithmetic number, because the mean of its divisors is an integer number (4207878).

Almost surely, 2^11221006 is an apocalyptic number.

11221006 is a deficient number, since it is larger than the sum of its proper divisors (5610506).

11221006 is an equidigital number, since it uses as much as digits as its factorization.

11221006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5610505.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 11221006 is about 3349.7770075036. Note that the first 3 decimals coincide. The cubic root of 11221006 is about 223.8775771307.

Adding to 11221006 its reverse (60012211), we get a palindrome (71233217).

The spelling of 11221006 in words is "eleven million, two hundred twenty-one thousand, six".