11221534 has 4 divisors (see below), whose sum is σ = 16832304. Its totient is φ = 5610766.

The previous prime is 11221523. The next prime is 11221549. The reversal of 11221534 is 43512211.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2805382 + ... + 2805385.

It is an arithmetic number, because the mean of its divisors is an integer number (4208076).

Almost surely, 2^11221534 is an apocalyptic number.

11221534 is a deficient number, since it is larger than the sum of its proper divisors (5610770).

11221534 is an equidigital number, since it uses as much as digits as its factorization.

11221534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5610769.

The product of its digits is 240, while the sum is 19.

The square root of 11221534 is about 3349.8558177928. The cubic root of 11221534 is about 223.8810885659.

Adding to 11221534 its reverse (43512211), we get a palindrome (54733745).

The spelling of 11221534 in words is "eleven million, two hundred twenty-one thousand, five hundred thirty-four".